[rtems-docs commit] eng: Add generated documentation of spec items
Sebastian Huber
sebh at rtems.org
Mon Jun 1 11:02:28 UTC 2020
Module: rtems-docs
Branch: master
Commit: 23ab40d3e6899c5956c26770f07f3a5eb910be8b
Changeset: http://git.rtems.org/rtems-docs/commit/?id=23ab40d3e6899c5956c26770f07f3a5eb910be8b
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Thu May 28 09:21:38 2020 +0200
eng: Add generated documentation of spec items
The documentation of the specification items is generated by an RTEMS
qualification tool from a specification of specification items.
Move non-generated content to "req-for-req.rst".
Update #3715.
---
eng/glossary.rst | 6 -
eng/req/index.rst | 1 -
eng/req/items.rst | 4536 ++++++++++++++++++++++++++++++++++++++++++----
eng/req/req-for-req.rst | 47 +-
eng/req/traceability.rst | 35 +-
eng/req/validation.rst | 46 -
6 files changed, 4256 insertions(+), 415 deletions(-)
diff --git a/eng/glossary.rst b/eng/glossary.rst
index d0fc1eb..f0c0fce 100644
--- a/eng/glossary.rst
+++ b/eng/glossary.rst
@@ -9,9 +9,6 @@ Glossary
.. glossary::
:sorted:
- ABI
- An acronym for Application Binary Interface.
-
API
An acronym for Application Programming Interface.
@@ -103,9 +100,6 @@ Glossary
linker) such as jump tables, linker trampolines, exception frame information,
etc.
- software item
- This term has the same meaning as :term:`software product`.
-
software product
The *software product* is the :term:`RTEMS` real-time operating system.
diff --git a/eng/req/index.rst b/eng/req/index.rst
index b793130..fbda0b8 100644
--- a/eng/req/index.rst
+++ b/eng/req/index.rst
@@ -86,7 +86,6 @@ All procedures should be based on a peer review principles.
req-for-req
items
- validation
traceability
management
tooling
diff --git a/eng/req/items.rst b/eng/req/items.rst
index 0c13bb2..05104a6 100644
--- a/eng/req/items.rst
+++ b/eng/req/items.rst
@@ -2,519 +2,4367 @@
.. Copyright (C) 2019, 2020 embedded brains GmbH (http://www.embedded-brains.de)
-.. _ReqEngSpecItems:
+.. _ReqEngSpecificationItems:
Specification Items
===================
-The technical specification of RTEMS will contain requirements, specializations
-of requirements, :ref:`test procedures <ReqEngTestProcedure>`,
-:ref:`test suites <ReqEngTestSuite>`, :ref:`test cases <ReqEngTestCase>`, and
-:ref:`requirement validations <ReqEngValidation>`. These things will be called
-*specification items* or just *items* if it is clear from the context.
+.. _ReqEngSpecificationItemHierarchy:
-The specification items are stored in files in :term:`YAML` format with a
-defined set of key-value pairs called attributes. The key name shall match
-with the pattern defined by the regular expression
-``[a-zA-Z0-9][a-zA-Z0-9-]+``. In particular, key names which begin with an
-underscore (``_``) are reserved for internal use in tools.
+Specification Item Hierarchy
+----------------------------
-Each specification item shall have the following attributes:
+The specification item types have the following hierarchy:
-enabled-by
- The value shall be a list of expressions. An expression is an operator
- or an option. An option evaluates to true if it is included the set of
- enabled options of the configuration. An operator is a dictionary with
- exactly one key and a value. Valid keys are *and*, *or*, and *not*:
+* :ref:`SpecTypeRootItemType`
+
+ * :ref:`SpecTypeBuildItemType`
+
+ * :ref:`SpecTypeBuildAdaTestProgramItemType`
+
+ * :ref:`SpecTypeBuildBSPItemType`
+
+ * :ref:`SpecTypeBuildConfigurationFileItemType`
+
+ * :ref:`SpecTypeBuildConfigurationHeaderItemType`
+
+ * :ref:`SpecTypeBuildGroupItemType`
+
+ * :ref:`SpecTypeBuildLibraryItemType`
+
+ * :ref:`SpecTypeBuildObjectsItemType`
+
+ * :ref:`SpecTypeBuildOptionItemType`
+
+ * :ref:`SpecTypeBuildScriptItemType`
+
+ * :ref:`SpecTypeBuildStartFileItemType`
+
+ * :ref:`SpecTypeBuildTestProgramItemType`
+
+ * :ref:`SpecTypeConstraintItemType`
+
+ * :ref:`SpecTypeGlossaryItemType`
+
+ * :ref:`SpecTypeGlossaryGroupItemType`
+
+ * :ref:`SpecTypeGlossaryTermItemType`
+
+ * :ref:`SpecTypeInterfaceItemType`
+
+ * :ref:`SpecTypeApplicationConfigurationGroupItemType`
+
+ * :ref:`SpecTypeApplicationConfigurationOptionItemType`
+
+ * :ref:`SpecTypeApplicationConfigurationFeatureEnableOptionItemType`
+
+ * :ref:`SpecTypeApplicationConfigurationFeatureOptionItemType`
+
+ * :ref:`SpecTypeApplicationConfigurationValueOptionItemType`
+
+ * :ref:`SpecTypeInterfaceCompoundItemType`
+
+ * :ref:`SpecTypeInterfaceContainerItemType`
+
+ * :ref:`SpecTypeInterfaceDefineItemType`
+
+ * :ref:`SpecTypeInterfaceDomainItemType`
+
+ * :ref:`SpecTypeInterfaceEnumItemType`
+
+ * :ref:`SpecTypeInterfaceEnumeratorItemType`
+
+ * :ref:`SpecTypeInterfaceForwardDeclarationItemType`
+
+ * :ref:`SpecTypeInterfaceFunctionItemType`
+
+ * :ref:`SpecTypeInterfaceGroupItemType`
- * The value of the *and* operator shall be a list of expressions. It
- evaluates to the *logical and* of all outcomes of the expressions in
- the list.
+ * :ref:`SpecTypeInterfaceHeaderFileItemType`
- * The value of the *or* operator shall be a list of expressions. It
- evaluates to the *logical or* of all outcomes of the expressions in
- the list.
+ * :ref:`SpecTypeInterfaceMacroItemType`
- * The value of the *not* operator shall be an expression. It negates
- the outcome of its expression.
+ * :ref:`SpecTypeInterfaceTypedefItemType`
- The outcome of a list of expressions without an operator is the
- *logical or* of all outcomes of the expressions in the list. An empty
- list evaluates to true. Examples:
+ * :ref:`SpecTypeInterfaceUnspecifiedItemType`
- .. code-block:: none
+ * :ref:`SpecTypeInterfaceVariableItemType`
- enabled-by:
- - RTEMS_SMP
+ * :ref:`SpecTypeRequirementItemType`
- .. code-block:: none
+ * :ref:`SpecTypeFunctionalRequirementItemType`
- enabled-by:
- - and:
- - RTEMS_NETWORKING
- - not: RTEMS_SMP
+ * :ref:`SpecTypeNonXFunctionalRequirementItemType`
- .. code-block:: none
+ * :ref:`SpecTypeRequirementValidationItemType`
- enabled-by:
- - and:
- - not: TEST_DEBUGGER01_EXCLUDE
- - or:
- - arm
- - i386
+ * :ref:`SpecTypeSpecificationItemType`
+
+ * :ref:`SpecTypeTestCaseItemType`
+
+ * :ref:`SpecTypeTestPlatformItemType`
+
+ * :ref:`SpecTypeTestProcedureItemType`
+
+ * :ref:`SpecTypeTestSuiteItemType`
+
+.. _ReqEngSpecificationItemTypes:
+
+Specification Item Types
+------------------------
+
+.. _SpecTypeRootItemType:
+
+Root Item Type
+^^^^^^^^^^^^^^
+
+The technical specification of RTEMS will contain for example requirements,
+specializations of requirements, interface specifications, test suites, test
+cases, and requirement validations. These things will be called *specification
+items* or just *items* if it is clear from the context.
+
+The specification items are stored in files in :term:`YAML`
+format with a defined set of key-value pairs called attributes. Each
+attribute key name shall be a :ref:`SpecTypeName`. In particular, key
+names which begin with an underscore (``_``) are reserved for internal
+use in tools.
+
+This is the root specification item type. All explicitly defined attributes
+shall be specified. The following attributes are explicitly defined for this
+type:
+
+SPDX-License-Identifier
+ The attribute value shall be a :ref:`SpecTypeSPDXLicenseIdentifier`. It
+ shall be the license of the item.
+
+copyrights
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeCopyright`. It shall be the list of copyright statements of
+ the item.
+
+enabled-by
+ The attribute value shall be an :ref:`SpecTypeEnabledXByExpression`. It
+ shall define the conditions under which the item is enabled.
links
- The value shall be a list of key-value pairs defining links to other
- specification items. The list is ordered and defines the order in
- which links are processed. There shall be a key *role* with an
- unspecified value. There shall be a key *uid* with a relative UID to
- the item referenced by this link. Other keys are type-specific.
- Example:
-
- .. code-block:: yaml
-
- links:
- - role: build-dependency
- uid: optpwrdwnhlt
- - role: build-dependency
- uid: ../../bspopts
- - role: build-dependency
- uid: ../start
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeLink`.
type
- The value shall be the specification :ref:`item type <ReqEngItemTypes>`.
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the item
+ type. The selection of types and the level of detail depends on a
+ particular standard and product model. We need enough flexibility to be in
+ line with ECSS-E-ST-10-06 and possible future applications of other
+ standards. The item type may be refined further with additional
+ type-specific subtypes.
-The following attributes are used in specification items of various types:
+This type is refined by the following types:
-.. _ReqEngItemAttrLicense:
+* :ref:`SpecTypeBuildItemType`
-SPDX-License-Identifier
- The value should be ``BSD-2-Clause OR CC-BY-SA-4.0``. If content is
- imported from external sources, then the corresponding license shall be
- used. Acceptable licenses are BSD-2-Clause and CC-BY-SA-4.0. The
- copyright holder of the external work should be asked to allow a
- dual-licensing BSD-2-Clause or CC-BY-SA-4.0. This allows generation of
- BSD-2-Clause licensed source code and CC-BY-SA-4.0 licensed documentation.
+* :ref:`SpecTypeConstraintItemType`
-.. _ReqEngItemAttrCopyrights:
+* :ref:`SpecTypeGlossaryItemType`
-copyrights
- The value shall be a list of copyright statements of the following formats:
+* :ref:`SpecTypeInterfaceItemType`
+
+* :ref:`SpecTypeRequirementItemType`
- * ``Copyright (C) <YEAR> <COPYRIGHT HOLDER>``
+* :ref:`SpecTypeRequirementValidationItemType`
- * ``Copyright (C) <FIRST YEAR>, <LAST YEAR> <COPYRIGHT HOLDER>``
+* :ref:`SpecTypeSpecificationItemType`
- See also :ref:`FileHeaderCopyright`.
+* :ref:`SpecTypeTestCaseItemType`
-.. _ReqEngItemTypes:
+* :ref:`SpecTypeTestPlatformItemType`
-Item Types
-----------
+* :ref:`SpecTypeTestProcedureItemType`
-Specification items can have all sorts of *types*. The selection of types and
-the level of detail depends on a particular standard and product model. We need
-enough flexibility to be in line with ECSS-E-ST-10-06 and possible future
-applications of other standards. Each item may have a list of types. Valid
-types are listed below. This list may change over time. If new types are
-added, then a mapping between types should be specified. The item types and
-their definition is work in progress. A list of types follows:
+* :ref:`SpecTypeTestSuiteItemType`
-* requirement
+.. _SpecTypeBuildItemType:
- * functional - Functional requirements shall describe the behaviour of the
- software product under specific conditions.
+Build Item Type
+^^^^^^^^^^^^^^^
- * *capability*
+This type refines the :ref:`SpecTypeRootItemType` though the ``type`` attribute
+if the value is ``build``. This set of attributes specifies a build item. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
- * *dependability-function*
+build-type
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the build
+ item type.
- * *function*
+This type is refined by the following types:
- * *operational* - Operational requirements shall
+* :ref:`SpecTypeBuildAdaTestProgramItemType`
- * define the operation modes (e.g. initialization, multitasking, termination),
+* :ref:`SpecTypeBuildBSPItemType`
- * describe the operation modes, and
+* :ref:`SpecTypeBuildConfigurationFileItemType`
- * describe the operation mode transitions.
+* :ref:`SpecTypeBuildConfigurationHeaderItemType`
- * *safety-function*
+* :ref:`SpecTypeBuildGroupItemType`
- * non-functional
+* :ref:`SpecTypeBuildLibraryItemType`
- * *build-configuration*
+* :ref:`SpecTypeBuildObjectsItemType`
- * *constraint*
+* :ref:`SpecTypeBuildOptionItemType`
- * *design*
+* :ref:`SpecTypeBuildScriptItemType`
- * *interface*
+* :ref:`SpecTypeBuildStartFileItemType`
- * *interface-requirement*
+* :ref:`SpecTypeBuildTestProgramItemType`
- * *maintainability*
+.. _SpecTypeBuildAdaTestProgramItemType:
- * *performance*
+Build Ada Test Program Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- * *portability*
+This type refines the :ref:`SpecTypeBuildItemType` though the ``build-type``
+attribute if the value is ``ada-test-program``. This set of attributes
+specifies an Ada test program executable to build. Test programs may use
+additional objects provided by :ref:`SpecTypeBuildObjectsItemType` items. Test
+programs have an implicit ``enabled-by`` attribute value which is controlled by
+the option action :ref:`set-test-state <SpecTypeBuildOptionItemType>`. If the
+test state is set to ``exclude``, then the test program is not built. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
- * *quality*
+ada-main
+ The attribute value shall be a string. It shall be the path to the Ada main
+ body file.
- * *reliability*
+ada-object-directory
+ The attribute value shall be a string. It shall be the path to the Ada
+ object directory (``-D`` option value for ``gnatmake``).
- * *resource*
+adaflags
+ The attribute value shall be a list of strings. It shall be a list of
+ options for the Ada compiler.
- * *safety*
+adaincludes
+ The attribute value shall be a list of strings. It shall be a list of Ada
+ include paths.
-* *test-procedure*
+cflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCCompilerOption`.
-* *test-suite*
+cppflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCPreprocessorOption`.
-* *test-case*
+includes
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildIncludePath`.
-* *validation-by-analysis*
+ldflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildLinkerOption`.
-* *validation-by-inspection*
+source
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildSource`.
-* *validation-by-review-of-design*
+stlib
+ The attribute value shall be a list of strings. It shall be a list of
+ external static library identifiers used to link this test program, e.g.
+ ``m`` for ``libm.a``.
-* *validation-platform*
+target
+ The attribute value shall be a :ref:`SpecTypeBuildTarget`.
-.. image:: ../../images/eng/req-spec-items.*
- :scale: 70
- :align: center
+use-after
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildUseAfterDirective`.
+
+use-before
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildUseBeforeDirective`.
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ ada-main: testsuites/ada/samples/hello/hello.adb
+ ada-object-directory: testsuites/ada/samples/hello
+ adaflags: []
+ adaincludes:
+ - cpukit/include/adainclude
+ - testsuites/ada/support
+ build-type: ada-test-program
+ cflags: []
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ cppflags: []
+ enabled-by: true
+ includes: []
+ ldflags: []
+ links: []
+ source:
+ - testsuites/ada/samples/hello/init.c
+ stlib: []
+ target: testsuites/ada/ada_hello.exe
+ type: build
+ use-after: []
+ use-before: []
+
+.. _SpecTypeBuildBSPItemType:
+
+Build BSP Item Type
+^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeBuildItemType` though the ``build-type``
+attribute if the value is ``bsp``. This set of attributes specifies a base BSP
+variant to build. All explicitly defined attributes shall be specified. The
+following attributes are explicitly defined for this type:
+
+arch
+ The attribute value shall be a string. It shall be the target architecture
+ of the BSP.
+
+bsp
+ The attribute value shall be a string. It shall be the base BSP variant
+ name.
+
+cflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCCompilerOption`.
+
+cppflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCPreprocessorOption`.
+
+family
+ The attribute value shall be a string. It shall be the BSP family name.
+ The name shall be the last directory of the path to the BSP sources.
+
+includes
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildIncludePath`.
+
+install
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildInstallDirective`.
+
+source
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildSource`.
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ arch: myarch
+ bsp: mybsp
+ build-type: bsp
+ cflags: []
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ cppflags: []
+ enabled-by: true
+ family: mybsp
+ includes: []
+ install:
+ - destination: ${BSP_INCLUDEDIR}
+ source:
+ - bsps/myarch/mybsp/include/bsp.h
+ - bsps/myarch/mybsp/include/tm27.h
+ - destination: ${BSP_INCLUDEDIR}/bsp
+ source:
+ - bsps/myarch/mybsp/include/bsp/irq.h
+ - destination: ${BSP_LIBDIR}
+ source:
+ - bsps/myarch/mybsp/start/linkcmds
+ links:
+ - role: build-dependency
+ uid: ../../obj
+ - role: build-dependency
+ uid: ../../opto2
+ - role: build-dependency
+ uid: abi
+ - role: build-dependency
+ uid: obj
+ - role: build-dependency
+ uid: ../start
+ - role: build-dependency
+ uid: ../../bspopts
+ source:
+ - bsps/myarch/mybsp/start/bspstart.c
+ type: build
+
+.. _SpecTypeBuildConfigurationFileItemType:
+
+Build Configuration File Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeBuildItemType` though the ``build-type``
+attribute if the value is ``config-file``. This set of attributes specifies a
+configuration file placed in the build tree. The configuration file is
+generated during the configure command execution and are placed in the build
+tree. All explicitly defined attributes shall be specified. The following
+attributes are explicitly defined for this type:
+
+content
+ The attribute value shall be a string. It shall be the content of the
+ configuration file. A ${VARIABLE} substitution is performed during the
+ configure command execution using the variables of the configuration set.
+ Use $$ for a plain $ character. To have all variables from sibling items
+ available for substitution it is recommended to link them in the proper
+ order.
+
+install-path
+ The attribute value shall be a :ref:`SpecTypeBuildInstallPath`.
+
+target
+ The attribute value shall be a :ref:`SpecTypeBuildTarget`.
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ build-type: config-file
+ content: |
+ # ...
+ Name: ${ARCH}-rtems${__RTEMS_MAJOR__}-${BSP_NAME}
+ # ...
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ enabled-by: true
+ install-path: ${PREFIX}/lib/pkgconfig
+ links: []
+ target: ${ARCH}-rtems${__RTEMS_MAJOR__}-${BSP_NAME}.pc
+ type: build
+
+.. _SpecTypeBuildConfigurationHeaderItemType:
+
+Build Configuration Header Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeBuildItemType` though the ``build-type``
+attribute if the value is ``config-header``. This set of attributes specifies
+configuration header file. The configuration header file is generated during
+configure command execution and is placed in the build tree. All collected
+configuration defines are written to the configuration header file during the
+configure command execution. To have all configuration defines from sibling
+items available it is recommended to link them in the proper order. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+guard
+ The attribute value shall be a string. It shall be the header guard define.
+
+include-headers
+ The attribute value shall be a list of strings. It shall be a list of
+ header files to include via ``#include <...>``.
+
+install-path
+ The attribute value shall be a :ref:`SpecTypeBuildInstallPath`.
+
+target
+ The attribute value shall be a :ref:`SpecTypeBuildTarget`.
+
+.. _SpecTypeBuildGroupItemType:
+
+Build Group Item Type
+^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeBuildItemType` though the ``build-type``
+attribute if the value is ``group``. This set of attributes provides a means to
+aggregate other build items and modify the build item context which is used by
+referenced build items. The ``includes``, ``ldflags``, ``objects``, and
+``use`` variables of the build item context are updated by the corresponding
+attributes of the build group. All explicitly defined attributes shall be
+specified. The following attributes are explicitly defined for this type:
+
+includes
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildIncludePath`.
+
+install
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildInstallDirective`.
+
+ldflags
+ The attribute value shall be a list of strings. It shall be a list of
+ options for the linker. They are used to link executables referenced by
+ this item.
+
+use-after
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildUseAfterDirective`.
+
+use-before
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildUseBeforeDirective`.
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ build-type: group
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ enabled-by:
+ - BUILD_TESTS
+ - BUILD_SAMPLES
+ includes:
+ - testsuites/support/include
+ install: []
+ ldflags:
+ - -Wl,--wrap=printf
+ - -Wl,--wrap=puts
+ links:
+ - role: build-dependency
+ uid: ticker
+ type: build
+ use-after: []
+ use-before:
+ - rtemstest
+
+.. _SpecTypeBuildLibraryItemType:
+
+Build Library Item Type
+^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeBuildItemType` though the ``build-type``
+attribute if the value is ``library``. This set of attributes specifies a
+static library. Library items may use additional objects provided by
+:ref:`SpecTypeBuildObjectsItemType` items through the build dependency links of
+the item. All explicitly defined attributes shall be specified. The following
+attributes are explicitly defined for this type:
+
+cflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCCompilerOption`.
+
+cppflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCPreprocessorOption`.
+
+cxxflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCXXCompilerOption`.
+
+includes
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildIncludePath`.
+
+install
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildInstallDirective`.
+
+install-path
+ The attribute value shall be a :ref:`SpecTypeBuildInstallPath`.
+
+source
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildSource`.
+
+target
+ The attribute value shall be a :ref:`SpecTypeBuildTarget`. It shall be the
+ name of the static library, e.g. ``z`` for ``libz.a``.
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ build-type: library
+ cflags:
+ - -Wno-pointer-sign
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ cppflags: []
+ cxxflags: []
+ enabled-by: true
+ includes:
+ - cpukit/libfs/src/jffs2/include
+ install:
+ - destination: ${BSP_INCLUDEDIR}/rtems
+ source:
+ - cpukit/include/rtems/jffs2.h
+ install-path: ${BSP_LIBDIR}
+ links: []
+ source:
+ - cpukit/libfs/src/jffs2/src/build.c
+ target: jffs2
+ type: build
+
+.. _SpecTypeBuildObjectsItemType:
+
+Build Objects Item Type
+^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeBuildItemType` though the ``build-type``
+attribute if the value is ``objects``. This set of attributes specifies a set
+of object files used to build static libraries or test programs. All explicitly
+defined attributes shall be specified. The following attributes are explicitly
+defined for this type:
+
+cflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCCompilerOption`.
+
+cppflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCPreprocessorOption`.
+
+cxxflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCXXCompilerOption`.
+
+includes
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildIncludePath`.
+
+install
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildInstallDirective`.
+
+source
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildSource`.
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ build-type: objects
+ cflags: []
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ cppflags: []
+ cxxflags: []
+ enabled-by: true
+ includes: []
+ install:
+ - destination: ${BSP_INCLUDEDIR}/bsp
+ source:
+ - bsps/include/bsp/bootcard.h
+ - bsps/include/bsp/default-initial-extension.h
+ - bsps/include/bsp/fatal.h
+ links: []
+ source:
+ - bsps/shared/start/bootcard.c
+ - bsps/shared/rtems-version.c
+ type: build
+
+.. _SpecTypeBuildOptionItemType:
+
+Build Option Item Type
+^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeBuildItemType` though the ``build-type``
+attribute if the value is ``option``. This set of attributes specifies a build
+option. The following explicitly defined attributes are required:
+
+* ``actions``
+
+* ``default``
+
+* ``default-by-variant``
+
+* ``description``
+
+The following attributes are explicitly defined for this type:
+
+actions
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildOptionAction`. Each action operates on the *action
+ value* handed over by a previous action and action-specific attribute
+ values. The actions pass the processed action value to the next action in
+ the list. The first action starts with an action value of ``None``. The
+ actions are carried out during the configure command execution.
+
+default
+ The attribute value shall be a :ref:`SpecTypeBuildOptionValue`. It shall be
+ the default value of the option if no variant-specific default value is
+ specified. Use ``null`` to specify that no default value exits. The
+ variant-specific default values may be specified by the
+ ``default-by-variant`` attribute.
+
+default-by-variant
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildOptionDefaultByVariant`. The list is processed from top
+ to bottom. If a matching variant is found, then the processing stops.
+
+description
+ The attribute value shall be an optional string. It shall be the
+ description of the option.
+
+format
+ The attribute value shall be an optional string. It shall be a `Python
+ format string
+ <https://docs.python.org/3/library/string.html#formatstrings>`_, for
+ example ``'{}'`` or ``'{:#010x}'``.
+
+name
+ The attribute value shall be a :ref:`SpecTypeBuildOptionName`.
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ actions:
+ - get-integer: null
+ - define: null
+ build-type: option
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ default: 115200
+ default-by-variant:
+ - value: 9600
+ variants:
+ - m68k/m5484FireEngine
+ - powerpc/hsc_cm01
+ - value: 19200
+ variants:
+ - m68k/COBRA5475
+ description: |
+ Default baud for console and other serial devices.
+ enabled-by: true
+ format: '{}'
+ links: []
+ name: BSP_CONSOLE_BAUD
+ type: build
+
+.. _SpecTypeBuildScriptItemType:
+
+Build Script Item Type
+^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeBuildItemType` though the ``build-type``
+attribute if the value is ``script``. This set of attributes specifies a build
+script. The optional attributes may be required by commands executed through
+the scripts. The following explicitly defined attributes are required:
+
+* ``do-build``
+
+* ``do-configure``
+
+* ``prepare-build``
+
+* ``prepare-configure``
+
+The following attributes are explicitly defined for this type:
+
+asflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildAssemblerOption`.
+
+cflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCCompilerOption`.
+
+cppflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCPreprocessorOption`.
+
+cxxflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCXXCompilerOption`.
+
+do-build
+ The attribute value shall be an optional string. If this script shall
+ execute, then it shall be Python code which is executed via ``exec()`` in
+ the context of the ``do_build()`` method of the :file:`wscript`. A local
+ variable ``bld`` is available with the ``waf`` build context. A local
+ variable ``bic`` is available with the build item context.
+
+do-configure
+ The attribute value shall be an optional string. If this script shall
+ execute, then it shall be Python code which is executed via ``exec()`` in
+ the context of the ``do_configure()`` method of the :file:`wscript`. A
+ local variable ``conf`` is available with the ``waf`` configuration
+ context. A local variable ``cic`` is available with the configuration item
+ context.
+
+includes
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildIncludePath`.
+
+ldflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildLinkerOption`.
+
+prepare-build
+ The attribute value shall be an optional string. If this script shall
+ execute, then it shall be Python code which is executed via ``exec()`` in
+ the context of the ``prepare_build()`` method of the :file:`wscript`. A
+ local variable ``bld`` is available with the ``waf`` build context. A
+ local variable ``bic`` is available with the build item context.
+
+prepare-configure
+ The attribute value shall be an optional string. If this script shall
+ execute, then it shall be Python code which is executed via ``exec()`` in
+ the context of the ``prepare_configure()`` method of the :file:`wscript`.
+ A local variable ``conf`` is available with the ``waf`` configuration
+ context. A local variable ``cic`` is available with the configuration item
+ context.
+
+stlib
+ The attribute value shall be a list of strings. It shall be a list of
+ external static library identifiers used to link this test program, e.g.
+ ``m`` for ``libm.a``.
+
+use-after
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildUseAfterDirective`.
+
+use-before
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildUseBeforeDirective`.
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ build-type: script
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ default: null
+ default-by-variant: []
+ do-build: |
+ bld.install_as(
+ "${BSP_LIBDIR}/linkcmds",
+ "bsps/" + bld.env.ARCH + "/" + bld.env.BSP_FAMILY +
+ "/start/linkcmds." + bld.env.BSP_BASE
+ )
+ do-configure: |
+ conf.env.append_value(
+ "LINKFLAGS",
+ ["-qnolinkcmds", "-T", "linkcmds." + conf.env.BSP_BASE]
+ )
+ enabled-by: true
+ links: []
+ prepare-build: null
+ prepare-configure: null
+ type: build
+
+.. _SpecTypeBuildStartFileItemType:
+
+Build Start File Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeBuildItemType` though the ``build-type``
+attribute if the value is ``start-file``. This set of attributes specifies a
+start file to build. A start file is used to link an executable. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+asflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildAssemblerOption`.
+
+cppflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCPreprocessorOption`.
+
+includes
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildIncludePath`.
+
+install-path
+ The attribute value shall be a :ref:`SpecTypeBuildInstallPath`.
+
+source
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildSource`.
+
+target
+ The attribute value shall be a :ref:`SpecTypeBuildTarget`.
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ asflags: []
+ build-type: start-file
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ cppflags: []
+ enabled-by: true
+ includes: []
+ install-path: ${BSP_LIBDIR}
+ links: []
+ source:
+ - bsps/sparc/shared/start/start.S
+ target: start.o
+ type: build
+
+.. _SpecTypeBuildTestProgramItemType:
+
+Build Test Program Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeBuildItemType` though the ``build-type``
+attribute if the value is ``test-program``. This set of attributes specifies a
+test program executable to build. Test programs may use additional objects
+provided by :ref:`SpecTypeBuildObjectsItemType` items. Test programs have an
+implicit ``enabled-by`` attribute value which is controlled by the option
+action :ref:`set-test-state <SpecTypeBuildOptionItemType>`. If the test state
+is set to ``exclude``, then the test program is not built. All explicitly
+defined attributes shall be specified. The following attributes are explicitly
+defined for this type:
+
+cflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCCompilerOption`.
+
+cppflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCPreprocessorOption`.
+
+cxxflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCXXCompilerOption`.
+
+features
+ The attribute value shall be a string. It shall be the ``waf`` build
+ features for this test program.
+
+includes
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildIncludePath`.
+
+ldflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildLinkerOption`.
+
+source
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildSource`.
+
+stlib
+ The attribute value shall be a list of strings. It shall be a list of
+ external static library identifiers used to link this test program, e.g.
+ ``m`` for ``libm.a``.
+
+target
+ The attribute value shall be a :ref:`SpecTypeBuildTarget`.
+
+use-after
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildUseAfterDirective`.
+
+use-before
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildUseBeforeDirective`.
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ build-type: test-program
+ cflags: []
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ cppflags: []
+ cxxflags: []
+ enabled-by: true
+ features: c cprogram
+ includes: []
+ ldflags: []
+ links: []
+ source:
+ - testsuites/samples/ticker/init.c
+ - testsuites/samples/ticker/tasks.c
+ stlib: []
+ target: testsuites/samples/ticker.exe
+ type: build
+ use-after: []
+ use-before: []
+
+.. _SpecTypeConstraintItemType:
+
+Constraint Item Type
+^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeRootItemType` though the ``type`` attribute
+if the value is ``constraint``. This set of attributes specifies a constraint.
+All explicitly defined attributes shall be specified. The following attributes
+are explicitly defined for this type:
+
+rationale
+ The attribute value shall be an optional string. If the value is present,
+ then it shall state the rationale or justification of the constraint.
+
+scope
+ The attribute value shall be a string. It shall be the scope of the
+ constraint.
-Requirements
-------------
+text
+ The attribute value shall be a :ref:`SpecTypeRequirementText`. It shall
+ state the constraint.
-All requirement specification items shall have the following attribute:
+.. _SpecTypeGlossaryItemType:
-rationale:
- The rationale or justification of the specification item.
+Glossary Item Type
+^^^^^^^^^^^^^^^^^^
-Build Configuration
--------------------
+This type refines the :ref:`SpecTypeRootItemType` though the ``type`` attribute
+if the value is ``glossary``. This set of attributes specifies a glossary item.
+All explicitly defined attributes shall be specified. The following attributes
+are explicitly defined for this type:
-Build configuration requirements define what needs to be built (libraries,
-object files, test executables, etc.) and how (configuration option header
-files, compiler flags, linker flags, etc.). The goal is to generate build
-files (Makefile or waf) and content for the Software Configuration File (SCF)
-from it. A YAML scheme needs to be defined for this purpose.
+glossary-type
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the
+ glossary item type.
-.. _ReqEngInterfaceReq:
+This type is refined by the following types:
-Interface Requirement
----------------------
+* :ref:`SpecTypeGlossaryGroupItemType`
-Interface requirements shall describe the high level aspects of interfaces.
-The item type shall be *interface-requirement*.
+* :ref:`SpecTypeGlossaryTermItemType`
-.. _ReqEngInterface:
+.. _SpecTypeGlossaryGroupItemType:
-Interface
----------
+Glossary Group Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^
-.. warning::
+This type refines the :ref:`SpecTypeGlossaryItemType` though the
+``glossary-type`` attribute if the value is ``group``. This set of attributes
+specifies a glossary group. All explicitly defined attributes shall be
+specified. The following attributes are explicitly defined for this type:
+
+name
+ The attribute value shall be a string. It shall be the human readable name
+ of the glossary group.
+
+text
+ The attribute value shall be a string. It shall state the requirement for
+ the glossary group.
- This is work in progress.
+.. _SpecTypeGlossaryTermItemType:
-Interface items shall specify the interface of the software product to other
-software products and the hardware. The item type shall be *interface*. The
-interface items shall have an *interface-category* which is one of the
-following and nothing else:
+Glossary Term Item Type
+^^^^^^^^^^^^^^^^^^^^^^^
-* *application*: Application interface items shall describe the interface
- between the software product and the application (:term:`API`). The goal is
- to generate header files with Doxygen markup and user manual documentation
- parts from the application interface specification.
+This type refines the :ref:`SpecTypeGlossaryItemType` though the
+``glossary-type`` attribute if the value is ``term``. This set of attributes
+specifies a glossary term. All explicitly defined attributes shall be
+specified. The following attributes are explicitly defined for this type:
-* *application-configuration*: Application configuration items shall define
- parameters of the software product which can be set by the application at
- link-time. The goal is to generate user manual documentation parts and test
- cases from the application configuration specification.
+term
+ The attribute value shall be a string. It shall be the glossary term.
-* *architecture*: Architecture interface items shall define the
- interface between the software product and the processor architecture
- (:term:`ABI`).
+text
+ The attribute value shall be a string. It shall be the definition of the
+ glossary term.
-* *gcc*: GCC interface items shall define the interface between the software
- product and GCC components such as libgcc.a, libatomic.a, libgomp.a,
- libstdc++.a, etc.
+.. _SpecTypeInterfaceItemType:
-* *hardware*: Hardware interface items shall define the interface between the
- software product and the hardware.
+Interface Item Type
+^^^^^^^^^^^^^^^^^^^
-* *newlib*: Newlib interface items shall define the interface between the
- software product and the Newlib (libc.a).
+This type refines the :ref:`SpecTypeRootItemType` though the ``type`` attribute
+if the value is ``interface``. This set of attributes specifies an interface
+specification item. Interface items shall specify the interface of the software
+product to other software products and the hardware. Use
+:ref:`SpecTypeInterfaceDomainItemType` items to specify interface domains, for
+example the :term:`API`, C language, compiler, interfaces to the
+implementation, and the hardware. All explicitly defined attributes shall be
+specified. The following attributes are explicitly defined for this type:
-The interface items shall have an *interface-type* which is one of the
-following and nothing else:
+interface-type
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the
+ interface item type.
-* *configuration-option*
+This type is refined by the following types:
-* *define*
+* :ref:`SpecTypeApplicationConfigurationGroupItemType`
-* *enum*
+* :ref:`SpecTypeApplicationConfigurationOptionItemType`
-* *function*
+* :ref:`SpecTypeInterfaceCompoundItemType`
-* *header*
+* :ref:`SpecTypeInterfaceContainerItemType`
-* *macro*
+* :ref:`SpecTypeInterfaceDefineItemType`
-* *register-block*
+* :ref:`SpecTypeInterfaceDomainItemType`
-* *structure*
+* :ref:`SpecTypeInterfaceEnumItemType`
-* *typedef*
+* :ref:`SpecTypeInterfaceEnumeratorItemType`
-* *union*
+* :ref:`SpecTypeInterfaceForwardDeclarationItemType`
-* *variable*
+* :ref:`SpecTypeInterfaceFunctionItemType`
-.. _ReqEngInterfaceApplicationConfigGroups:
+* :ref:`SpecTypeInterfaceGroupItemType`
-Interface - Application Configuration Groups
---------------------------------------------
+* :ref:`SpecTypeInterfaceHeaderFileItemType`
-The application configuration group items shall have the following attribute
-specializations:
+* :ref:`SpecTypeInterfaceMacroItemType`
-SPDX-License-Identifier
- See :ref:`SPDX-License-Identifier <ReqEngItemAttrLicense>`.
+* :ref:`SpecTypeInterfaceTypedefItemType`
-appl-config-group-description:
- The value shall be the description of this application configuration group.
+* :ref:`SpecTypeInterfaceUnspecifiedItemType`
-appl-config-group-name:
- The value shall be the name of this application configuration group.
+* :ref:`SpecTypeInterfaceVariableItemType`
-copyrights
- See :ref:`copyrights <ReqEngItemAttrCopyrights>`.
+.. _SpecTypeApplicationConfigurationGroupItemType:
-interface-type
- The interface type value shall be *appl-config-group*.
+Application Configuration Group Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``appl-config-group``. This set of
+attributes specifies an application configuration group. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
-link
- There shall be a link to a higher level requirement.
+description
+ The attribute value shall be a string. It shall be the description of the
+ application configuration group.
+
+name
+ The attribute value shall be a string. It shall be human readable name of
+ the application configuration group.
text
- The application configuration group requirement.
+ The attribute value shall be a :ref:`SpecTypeRequirementText`. It shall
+ state the requirement for the application configuration group.
-type
- The type value shall be *interface*.
+.. _SpecTypeApplicationConfigurationOptionItemType:
-.. _ReqEngInterfaceApplicationConfigOptions:
+Application Configuration Option Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-Interface - Application Configuration Options
----------------------------------------------
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``appl-config-option``. This set
+of attributes specifies an application configuration option. All explicitly
+defined attributes shall be specified. The following attributes are explicitly
+defined for this type:
-The application configuration option items shall have the following attribute
-specializations:
+appl-config-option-type
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the
+ application configuration option type.
-SPDX-License-Identifier
- See :ref:`SPDX-License-Identifier <ReqEngItemAttrLicense>`.
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`. The
+ :ref:`SpecTypeApplicationConfigurationValueOptionItemType` items have an
+ attribute for constraints.
-appl-config-option-constraint
- This attribute shall be present only for *initializer* and *integer*
- type options. The value shall be a dictionary of the following optional
- key-value pairs.
+index-entries
+ The attribute value shall be a list of strings. It shall be a list of
+ additional application configuration option document index entries. The
+ application configuration option name is automatically added to the
+ document index.
- custom
- The value shall be a list of constraints in natural language. Use the
- following wording:
+name
+ The attribute value shall be an
+ :ref:`SpecTypeApplicationConfigurationOptionName`.
- The value of this configuration option shall be ...
+notes
+ The attribute value shall be an :ref:`SpecTypeInterfaceNotes`.
- min
- The value shall be the minimum value of the option.
+text
+ The attribute value shall be a :ref:`SpecTypeRequirementText`. It shall
+ state the requirement for the application configuration option.
- max
- The value shall be the maximum value of the option.
+This type is refined by the following types:
- links
- The value shall be a list of relative UIDs to constraints.
+* :ref:`SpecTypeApplicationConfigurationFeatureEnableOptionItemType`
- set
- The value shall be the list of valid values of the option.
+* :ref:`SpecTypeApplicationConfigurationFeatureOptionItemType`
-appl-config-option-default
- This attribute shall be present only for *feature* type options. The value
- shall be a description of the default configuration in case this boolean
- feature define is undefined. Use the following wording:
+* :ref:`SpecTypeApplicationConfigurationValueOptionItemType`
- If this configuration option is undefined, then ...
+.. _SpecTypeApplicationConfigurationFeatureEnableOptionItemType:
-appl-config-option-default-value
- This attribute shall be present only for *initializer* and *integer*
- type options. The value shall be an initializer, an integer, or a
- descriptive text.
+Application Configuration Feature Enable Option Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-appl-config-option-description
- For *feature* and *feature-enable* type options, the value shall be a
- description of the configuration in case this boolean feature define is
- defined. Use the following wording:
+This type refines the :ref:`SpecTypeApplicationConfigurationOptionItemType`
+though the ``appl-config-option-type`` attribute if the value is
+``feature-enable``. This set of attributes specifies an application
+configuration feature enable option.
- In case this configuration option is defined, then ...
+.. _SpecTypeApplicationConfigurationFeatureOptionItemType:
- For *initializer* and *integer* options, the value shall describe the
- effect of the option value. The description should focus on the average
- use-case. It should not cover potential problems, constraints, obscure
- use-cases, corner cases and everything which makes matters complicated.
- Add these things to *appl-config-option-constraint* and
- *appl-config-option-notes*. Use the following wording:
+Application Configuration Feature Option Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- The value of this configuration option defines ...
+This type refines the :ref:`SpecTypeApplicationConfigurationOptionItemType`
+though the ``appl-config-option-type`` attribute if the value is ``feature``.
+This set of attributes specifies an application configuration feature option.
+All explicitly defined attributes shall be specified. The following attributes
+are explicitly defined for this type:
-appl-config-option-index
- The value shall be a list of entries for the document index. By default,
- the application configuration option name is added to the index.
+default
+ The attribute value shall be a string. It shall describe what happens if
+ the configuration option is undefined.
-appl-config-option-name
- The value shall be the name of the application configuration option. Use a
- pattern of ``CONFIGURE_[A-Z0-9_]+`` for the name.
+.. _SpecTypeApplicationConfigurationValueOptionItemType:
-appl-config-option-notes
- The value shall be the notes for this option. The notes should explain
- everything which was omitted from the description. It should cover all the
- details, special cases, usage notes, error conditions, configuration
- dependencies, and references.
+Application Configuration Value Option Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-appl-config-option-type
- The value shall be one of the following and nothing else:
+This type refines the following types:
- feature
- Use this type for boolean feature opions which have a behaviour in the
- default configuration which is not just that the feature is disabled.
+* :ref:`SpecTypeApplicationConfigurationOptionItemType` though the
+ ``appl-config-option-type`` attribute if the value is ``initializer``
- feature-enable
- Use this type for boolean feature opions which just enables a feature.
+* :ref:`SpecTypeApplicationConfigurationOptionItemType` though the
+ ``appl-config-option-type`` attribute if the value is ``integer``
- initializer
- Use this type for options which initialize a data structure.
+This set of attributes specifies application configuration initializer or
+integer option. All explicitly defined attributes shall be specified. The
+following attributes are explicitly defined for this type:
- integer
- Use this type for integer options.
+constraints
+ The attribute value shall be an
+ :ref:`SpecTypeApplicationConfigurationOptionConstraintSet`.
-copyrights
- See :ref:`copyrights <ReqEngItemAttrCopyrights>`.
+default-value
+ The attribute value shall be an :ref:`SpecTypeIntegerOrString`. It shall
+ shall describe the default value of the application configuration option.
-interface-type
- The interface type value shall be *appl-config-option*.
+.. _SpecTypeInterfaceCompoundItemType:
+
+Interface Compound Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the following types:
+
+* :ref:`SpecTypeInterfaceItemType` though the ``interface-type`` attribute if
+ the value is ``struct``
+
+* :ref:`SpecTypeInterfaceItemType` though the ``interface-type`` attribute if
+ the value is ``union``
+
+This set of attributes specifies a compound (struct or union). All explicitly
+defined attributes shall be specified. The following attributes are explicitly
+defined for this type:
+
+brief
+ The attribute value shall be an :ref:`SpecTypeInterfaceBriefDescription`.
+
+definition
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeInterfaceCompoundMemberDefinitionDirective`.
+
+definition-kind
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceCompoundDefinitionKind`.
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+name
+ The attribute value shall be a string. It shall be the name of the compound
+ (struct or union).
+
+notes
+ The attribute value shall be an :ref:`SpecTypeInterfaceNotes`.
+
+.. _SpecTypeInterfaceContainerItemType:
+
+Interface Container Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``container``. Items of this type
+specify an interface container. The item shall have exactly one link with the
+:ref:`SpecTypeInterfacePlacementLinkRole` to an
+:ref:`SpecTypeInterfaceDomainItemType` item. This link defines the interface
+domain of the container.
+
+.. _SpecTypeInterfaceDefineItemType:
+
+Interface Define Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``define``. This set of attributes
+specifies a define. All explicitly defined attributes shall be specified. The
+following attributes are explicitly defined for this type:
+
+brief
+ The attribute value shall be an :ref:`SpecTypeInterfaceBriefDescription`.
+
+definition
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceDefinitionDirective`.
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+name
+ The attribute value shall be a string. It shall be the name of the define.
+
+notes
+ The attribute value shall be an :ref:`SpecTypeInterfaceNotes`.
+
+.. _SpecTypeInterfaceDomainItemType:
+
+Interface Domain Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``domain``. This set of attributes
+specifies an interface domain. Items of the types
+:ref:`SpecTypeInterfaceContainerItemType` and
+:ref:`SpecTypeInterfaceHeaderFileItemType` are placed into domains through
+links with the :ref:`SpecTypeInterfacePlacementLinkRole`. All explicitly
+defined attributes shall be specified. The following attributes are explicitly
+defined for this type:
+
+description
+ The attribute value shall be a string. It shall be the description of the
+ domain
+
+name
+ The attribute value shall be a string. It shall be the human readable name
+ of the domain.
+
+.. _SpecTypeInterfaceEnumItemType:
+
+Interface Enum Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``enum``. This set of attributes
+specifies an enum. All explicitly defined attributes shall be specified. The
+following attributes are explicitly defined for this type:
+
+brief
+ The attribute value shall be an :ref:`SpecTypeInterfaceBriefDescription`.
+
+definition-kind
+ The attribute value shall be an :ref:`SpecTypeInterfaceEnumDefinitionKind`.
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+name
+ The attribute value shall be a string. It shall be the name of the enum.
+
+notes
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+.. _SpecTypeInterfaceEnumeratorItemType:
+
+Interface Enumerator Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``enumerator``. This set of
+attributes specifies an enumerator. All explicitly defined attributes shall be
+specified. The following attributes are explicitly defined for this type:
+
+brief
+ The attribute value shall be an :ref:`SpecTypeInterfaceBriefDescription`.
+
+definition
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceDefinitionDirective`.
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+name
+ The attribute value shall be a string. It shall be the name of the
+ enumerator.
+
+notes
+ The attribute value shall be an :ref:`SpecTypeInterfaceNotes`.
+
+.. _SpecTypeInterfaceForwardDeclarationItemType:
+
+Interface Forward Declaration Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``forward-declaration``. Items of
+this type specify a forward declaration. The item shall have exactly one link
+with the :ref:`SpecTypeInterfaceTargetLinkRole` to an
+:ref:`SpecTypeInterfaceCompoundItemType` item. This link defines the type
+declared by the forward declaration.
+
+.. _SpecTypeInterfaceFunctionItemType:
+
+Interface Function Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``function``. This set of
+attributes specifies a function. All explicitly defined attributes shall be
+specified. The following attributes are explicitly defined for this type:
+
+brief
+ The attribute value shall be an :ref:`SpecTypeInterfaceBriefDescription`.
+
+definition
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceFunctionDefinitionDirective`.
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+name
+ The attribute value shall be a string. It shall be the name of the
+ function.
+
+notes
+ The attribute value shall be an :ref:`SpecTypeInterfaceNotes`.
+
+params
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeInterfaceParameter`.
+
+return
+ The attribute value shall be an :ref:`SpecTypeInterfaceReturnDirective`.
-link
- There shall be a link to the application configuration group to which this
- option belongs.
+.. _SpecTypeInterfaceGroupItemType:
+
+Interface Group Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``group``. This set of attributes
+specifies an interface group. All explicitly defined attributes shall be
+specified. The following attributes are explicitly defined for this type:
+
+brief
+ The attribute value shall be an :ref:`SpecTypeInterfaceBriefDescription`.
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+identifier
+ The attribute value shall be an :ref:`SpecTypeInterfaceGroupIdentifier`.
+
+name
+ The attribute value shall be a string. It shall be the human readable name
+ of the interface group.
+
+.. _SpecTypeInterfaceHeaderFileItemType:
+
+Interface Header File Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``header-file``. This set of
+attributes specifies a header file. The item shall have exactly one link with
+the :ref:`SpecTypeInterfacePlacementLinkRole` to an
+:ref:`SpecTypeInterfaceDomainItemType` item. This link defines the interface
+domain of the header file. All explicitly defined attributes shall be
+specified. The following attributes are explicitly defined for this type:
+
+path
+ The attribute value shall be a string. It shall be the path used to include
+ the header file. For example :file:`rtems/confdefs.h`.
+
+prefix
+ The attribute value shall be a string. It shall be the prefix directory
+ path to the header file in the interface domain. For example
+ :file:`cpukit/include`.
+
+.. _SpecTypeInterfaceMacroItemType:
+
+Interface Macro Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``macro``. This set of attributes
+specifies a macro. All explicitly defined attributes shall be specified. The
+following attributes are explicitly defined for this type:
+
+brief
+ The attribute value shall be an :ref:`SpecTypeInterfaceBriefDescription`.
+
+definition
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceDefinitionDirective`.
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+name
+ The attribute value shall be a string. It shall be the name of the macro.
+
+notes
+ The attribute value shall be an :ref:`SpecTypeInterfaceNotes`.
+
+params
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeInterfaceParameter`.
+
+return
+ The attribute value shall be an :ref:`SpecTypeInterfaceReturnDirective`.
+
+.. _SpecTypeInterfaceTypedefItemType:
+
+Interface Typedef Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``typedef``. This set of
+attributes specifies a typedef. All explicitly defined attributes shall be
+specified. The following attributes are explicitly defined for this type:
+
+brief
+ The attribute value shall be an :ref:`SpecTypeInterfaceBriefDescription`.
+
+definition
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceDefinitionDirective`.
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+name
+ The attribute value shall be a string. It shall be the name of the typedef.
+
+notes
+ The attribute value shall be an :ref:`SpecTypeInterfaceNotes`.
+
+.. _SpecTypeInterfaceUnspecifiedItemType:
+
+Interface Unspecified Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``unspecified``. This set of
+attributes specifies an unspecified interface. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+name
+ The attribute value shall be a string. It shall be the name of the
+ unspecified interface.
+
+.. _SpecTypeInterfaceVariableItemType:
+
+Interface Variable Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceItemType` though the
+``interface-type`` attribute if the value is ``variable``. This set of
+attributes specifies a variable. All explicitly defined attributes shall be
+specified. The following attributes are explicitly defined for this type:
+
+brief
+ The attribute value shall be an :ref:`SpecTypeInterfaceBriefDescription`.
+
+definition
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceDefinitionDirective`.
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+name
+ The attribute value shall be a string. It shall be the name of the
+ variable.
+
+notes
+ The attribute value shall be an :ref:`SpecTypeInterfaceNotes`.
+
+.. _SpecTypeRequirementItemType:
+
+Requirement Item Type
+^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeRootItemType` though the ``type`` attribute
+if the value is ``requirement``. This set of attributes specifies a
+requirement. All explicitly defined attributes shall be specified. The
+following attributes are explicitly defined for this type:
+
+rationale
+ The attribute value shall be an optional string. If the value is present,
+ then it shall state the rationale or justification of the requirement.
+
+references
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeRequirementReference`.
+
+requirement-type
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the
+ requirement item type.
text
- The application configuration option requirement.
+ The attribute value shall be a :ref:`SpecTypeRequirementText`. It shall
+ state the requirement.
-type
- The type value shall be *interface*.
+This type is refined by the following types:
-.. _ReqEngTestProcedure:
+* :ref:`SpecTypeFunctionalRequirementItemType`
-Test Procedure
---------------
+* :ref:`SpecTypeNonXFunctionalRequirementItemType`
-Test procedures shall be executed by the Qualification Toolchain.
+Please have a look at the following example:
-The test procedure items shall have the following attribute
-specializations:
+.. code-block:: yaml
-type
- The type value shall be *test-procedure*.
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de
+ enabled-by: true
+ functional-type: capability
+ links: []
+ rationale: |
+ It keeps you busy.
+ requirement-type: functional
+ text: |
+ The system shall do crazy things.
+ type: requirement
+
+.. _SpecTypeFunctionalRequirementItemType:
+
+Functional Requirement Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeRequirementItemType` though the
+``requirement-type`` attribute if the value is ``functional``. This set of
+attributes specifies a functional requirement. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+functional-type
+ The attribute value shall be a :ref:`SpecTypeRequirementFunctionalType`. It
+ shall be the functional type of the requirement.
+
+.. _SpecTypeNonXFunctionalRequirementItemType:
+
+Non-Functional Requirement Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeRequirementItemType` though the
+``requirement-type`` attribute if the value is ``non-functional``. This set of
+attributes specifies a non-functional requirement. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+non-functional-type
+ The attribute value shall be a
+ :ref:`SpecTypeRequirementNonXFunctionalType`. It shall be the
+ non-functional type of the requirement.
+
+.. _SpecTypeRequirementValidationItemType:
+
+Requirement Validation Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeRootItemType` though the ``type`` attribute
+if the value is ``validation``. This set of attributes provides a requirement
+validation evidence. The item shall have exactly one link to the validated
+requirement with the :ref:`SpecTypeRequirementValidationLinkRole`. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+method
+ The attribute value shall be a :ref:`SpecTypeRequirementValidationMethod`.
+ Validation by test is done through :ref:`SpecTypeTestCaseItemType` items.
text
- The purpose of this test procedure.
+ The attribute value shall be a string. It shall provide the validation
+ evidence depending on the validation method:
+
+ * *By analysis*: A statement shall be provided how the requirement is
+ met, by analysing static properties of the
+ :term:`software product`.
+
+ * *By inspection*: A statement shall be provided how the requirement
+ is met, by inspection of the :term:`source code`.
+
+ * *By review of design*: A rationale shall be provided to demonstrate
+ how the requirement is satisfied implicitly by the software design.
+
+.. _SpecTypeSpecificationItemType:
+
+Specification Item Type
+^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeRootItemType` though the ``type`` attribute
+if the value is ``spec``. This set of attributes specifies specification types.
+All explicitly defined attributes shall be specified. The following attributes
+are explicitly defined for this type:
+
+spec-description
+ The attribute value shall be an optional string. It shall be the
+ description of the specification type.
+
+spec-example
+ The attribute value shall be an optional string. If this value is present,
+ then tt shall be an example of the specification type.
+
+spec-info
+ The attribute value shall be a :ref:`SpecTypeSpecificationInformation`.
+
+spec-name
+ The attribute value shall be an optional string. It shall be the human
+ readable name of the specification type.
+
+spec-type
+ The attribute value shall be a :ref:`SpecTypeName`. It shall the
+ specification type.
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+ copyrights:
+ - Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ enabled-by: true
+ links:
+ - role: spec-member
+ uid: root
+ - role: spec-refinement
+ spec-key: type
+ spec-value: example
+ uid: root
+ spec-description: null
+ spec-example: null
+ spec-info:
+ dict:
+ attributes:
+ an-example-attribute:
+ description: |
+ It shall be an example.
+ spec-type: optional-str
+ example-number:
+ description: |
+ It shall be the example number.
+ spec-type: int
+ description: |
+ This set of attributes specifies an example.
+ required-attributes: all
+ spec-name: Example Item Type
+ spec-type: spec
+ type: spec
+
+.. _SpecTypeTestCaseItemType:
+
+Test Case Item Type
+^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeRootItemType` though the ``type`` attribute
+if the value is ``test-case``. This set of attributes specifies a test case.
+All explicitly defined attributes shall be specified. The following attributes
+are explicitly defined for this type:
+
+actions
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeTestCaseAction`.
+
+brief
+ The attribute value shall be a string. It shall be the test case brief
+ description.
+
+description
+ The attribute value shall be an optional string. It shall be the test case
+ description.
+
+epilogue
+ The attribute value shall be an optional string. If the attribute value is
+ present, then it shall be the test case epilogue code. The epilogue code
+ is placed in the test case body after the test case actions.
+
+fixture
+ The attribute value shall be an optional string. If the attribute value is
+ present, then it shall be a pointer to the test case fixture. The test
+ case fixture pointer declaration may be provided by the test case support
+ code or via an included header file.
+
+includes
+ The attribute value shall be a list of strings. It shall be a list of
+ header files included via ``#include <...>``.
+
+local-includes
+ The attribute value shall be a list of strings. It shall be a list of
+ header files included via ``#include "..."``.
+
+name
+ The attribute value shall be a :ref:`SpecTypeTestName`.
+
+prologue
+ The attribute value shall be an optional string. If the attribute value is
+ present, then it shall be the test case prologue code. The prologue code
+ is placed in the test case body before the test case actions. A use case
+ is the declaration of local variables used by the test case actions.
+
+support
+ The attribute value shall be an optional string. If the attribute value is
+ present, then it shall be the test case support code. The support code is
+ placed at file scope before the test case code.
+
+target
+ The attribute value shall be a string. It shall be the path to the
+ generated target test case source file.
+
+.. _SpecTypeTestPlatformItemType:
+
+Test Platform Item Type
+^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeRootItemType` though the ``type`` attribute
+if the value is ``test-platform``. Please note:
+
+.. warning::
+
+ This item type is work in progress.
-platform
- There shall be links to validation platform requirements.
+This set of attributes specifies a test platform. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+description
+ The attribute value shall be a string. It shall be the description of the
+ test platform.
+
+name
+ The attribute value shall be a string. It shall be the human readable name
+ of the test platform.
+
+.. _SpecTypeTestProcedureItemType:
+
+Test Procedure Item Type
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeRootItemType` though the ``type`` attribute
+if the value is ``test-procedure``. Please note:
+
+.. warning::
+
+ This item type is work in progress.
+
+This set of attributes specifies a test procedure. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+name
+ The attribute value shall be a string. It shall be the human readable name
+ of the test procedure.
+
+purpose
+ The attribute value shall be a string. It shall state the purpose of the
+ test procedure.
steps
- The test procedure steps. Could be a list of key-value pairs. The key
- is the step name and the value is a description of the actions
- performed in this step.
+ The attribute value shall be a string. It shall describe the steps of the
+ test procedure execution.
-.. _ReqEngTestSuite:
+.. _SpecTypeTestSuiteItemType:
-Test Suite
-----------
+Test Suite Item Type
+^^^^^^^^^^^^^^^^^^^^
-Test suites shall use the :ref:`RTEMS Test Framework <RTEMSTestFramework>`.
+This type refines the :ref:`SpecTypeRootItemType` though the ``type`` attribute
+if the value is ``test-suite``. This set of attributes specifies a test suite.
+All explicitly defined attributes shall be specified. The following attributes
+are explicitly defined for this type:
-The test suite items shall have the following attribute specializations:
+brief
+ The attribute value shall be a string. It shall be the test suite brief
+ description.
-type
- The type value shall be *test-suite*.
+code
+ The attribute value shall be a string. It shall be the test suite code.
+ The test suite code is placed at file scope in the target source file.
-text
- The test suite description.
+description
+ The attribute value shall be an optional string. It shall be the test suite
+ description.
-.. _ReqEngTestCase:
+includes
+ The attribute value shall be a list of strings. It shall be a list of
+ header files included via ``#include <...>``.
-Test Case
----------
+local-includes
+ The attribute value shall be a list of strings. It shall be a list of
+ header files included via ``#include "..."``.
-Test cases shall use the :ref:`RTEMS Test Framework <RTEMSTestFramework>`.
+name
+ The attribute value shall be a :ref:`SpecTypeTestName`.
-The test case items shall have the following attribute specializations:
+target
+ The attribute value shall be a string. It shall be the path to the
+ generated target test suite source file.
-type
- The type value shall be *test-case*.
+.. _ReqEngSpecificationAttributeSetsAndValueTypes:
-link
- The link to the requirement validated by this test case or no links if
- this is a unit or integration test case.
+Specification Attribute Sets and Value Types
+--------------------------------------------
-ref
- If this is a unit test case, then a reference to the :term:`software
- item` under test shall be provided. If this is an integration test
- case, then a reference to the integration under test shall be provided.
- The integration is identified by its Doxygen group name.
+.. _SpecTypeApplicationConfigurationGroupMemberLinkRole:
-text
- A short description of the test case.
+Application Configuration Group Member Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``appl-config-group-member``. It defines the application configuration
+group membership role of links.
+
+.. _SpecTypeApplicationConfigurationOptionConstraintSet:
+
+Application Configuration Option Constraint Set
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes defines application configuration option constraints.
+Additional constraints can be added through the links of the item using the
+:ref:`SpecTypeConstraintLinkRole`. None of the explicitly defined attributes
+are required. The following attributes are explicitly defined for this type:
+
+max
+ The attribute value shall be an :ref:`SpecTypeIntegerOrString`. It shall be
+ the maximum value of the application configuration option.
+
+min
+ The attribute value shall be an :ref:`SpecTypeIntegerOrString`. It shall be
+ the minimum value of the application configuration option.
+
+set
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeIntegerOrString`. It shall be the set of valid values for the
+ application configuration option.
+
+texts
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeRequirementText`. It shall be a list of constraints specific
+ to this application configuration option. For general constraints, use a
+ link with the :ref:`SpecTypeConstraintLinkRole` to a constraint item.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeApplicationConfigurationValueOptionItemType`
+
+.. _SpecTypeApplicationConfigurationOptionName:
+
+Application Configuration Option Name
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall be the name of an application
+configuration option. The value shall match with the regular expression
+"``^(CONFIGURE_|BSP_)[A-Z0-9_]+$"``.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeApplicationConfigurationOptionItemType`
+
+.. _SpecTypeBooleanOrIntegerOrString:
+
+Boolean or Integer or String
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be of one of the following variants:
+
+* The value may be a boolean.
+
+* The value may be an integer number.
+
+* The value may be a string.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildOptionAction`
+
+* :ref:`SpecTypeInterfaceReturnValue`
+
+.. _SpecTypeBuildAssemblerOption:
+
+Build Assembler Option
+^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall be an option for the assembler. The
+options are used to assemble the sources of this item. The options defined by
+this attribute succeed the options presented to the item by the build item
+context.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildScriptItemType`
+
+* :ref:`SpecTypeBuildStartFileItemType`
+
+.. _SpecTypeBuildCCompilerOption:
+
+Build C Compiler Option
+^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall be an option for the C compiler. The
+options are used to compile the sources of this item. The options defined by
+this attribute succeed the options presented to the item by the build item
+context.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildAdaTestProgramItemType`
+
+* :ref:`SpecTypeBuildBSPItemType`
+
+* :ref:`SpecTypeBuildLibraryItemType`
+
+* :ref:`SpecTypeBuildObjectsItemType`
+
+* :ref:`SpecTypeBuildOptionCCompilerCheckAction`
+
+* :ref:`SpecTypeBuildScriptItemType`
+
+* :ref:`SpecTypeBuildTestProgramItemType`
+
+.. _SpecTypeBuildCPreprocessorOption:
+
+Build C Preprocessor Option
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall be an option for the C preprocessor. The
+options are used to preprocess the sources of this item. The options defined
+by this attribute succeed the options presented to the item by the build item
+context.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildAdaTestProgramItemType`
+
+* :ref:`SpecTypeBuildBSPItemType`
+
+* :ref:`SpecTypeBuildLibraryItemType`
+
+* :ref:`SpecTypeBuildObjectsItemType`
+
+* :ref:`SpecTypeBuildScriptItemType`
+
+* :ref:`SpecTypeBuildStartFileItemType`
+
+* :ref:`SpecTypeBuildTestProgramItemType`
+
+.. _SpecTypeBuildCXXCompilerOption:
+
+Build C++ Compiler Option
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall be an option for the C++ compiler. The
+options are used to compile the sources of this item. The options defined by
+this attribute succeed the options presented to the item by the build item
+context.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildLibraryItemType`
+
+* :ref:`SpecTypeBuildObjectsItemType`
+
+* :ref:`SpecTypeBuildOptionCXXCompilerCheckAction`
+
+* :ref:`SpecTypeBuildScriptItemType`
+
+* :ref:`SpecTypeBuildTestProgramItemType`
+
+.. _SpecTypeBuildDependencyLinkRole:
+
+Build Dependency Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``build-dependency``. It defines the build dependency role of links.
+
+.. _SpecTypeBuildIncludePath:
+
+Build Include Path
+^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall be a path to header files. The path is
+used by the C preprocessor to search for header files. It succeeds the
+includes presented to the item by the build item context. For an
+:ref:`SpecTypeBuildGroupItemType` item the includes are visible to all items
+referenced by the group item. For :ref:`SpecTypeBuildBSPItemType`,
+:ref:`SpecTypeBuildObjectsItemType`, :ref:`SpecTypeBuildLibraryItemType`,
+:ref:`SpecTypeBuildStartFileItemType`, and
+:ref:`SpecTypeBuildTestProgramItemType` items the includes are only visible to
+the sources specified by the item itself and they do not propagate to
+referenced items.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildAdaTestProgramItemType`
+
+* :ref:`SpecTypeBuildBSPItemType`
+
+* :ref:`SpecTypeBuildGroupItemType`
+
+* :ref:`SpecTypeBuildLibraryItemType`
+
+* :ref:`SpecTypeBuildObjectsItemType`
+
+* :ref:`SpecTypeBuildScriptItemType`
+
+* :ref:`SpecTypeBuildStartFileItemType`
+
+* :ref:`SpecTypeBuildTestProgramItemType`
+
+.. _SpecTypeBuildInstallDirective:
+
+Build Install Directive
+^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies files installed by a build item. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+destination
+ The attribute value shall be a string. It shall be the install destination
+ directory.
+
+source
+ The attribute value shall be a list of strings. It shall be the list of
+ source files to be installed in the destination directory. The path to a
+ source file shall be relative to the directory of the :file:`wscript`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildBSPItemType`
+
+* :ref:`SpecTypeBuildGroupItemType`
+
+* :ref:`SpecTypeBuildLibraryItemType`
+
+* :ref:`SpecTypeBuildObjectsItemType`
+
+.. _SpecTypeBuildInstallPath:
+
+Build Install Path
+^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be of one of the following variants:
+
+* There may by be no value (null).
+
+* The value may be a string. It shall be the installation path of a
+ :ref:`SpecTypeBuildTarget`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildConfigurationFileItemType`
+
+* :ref:`SpecTypeBuildConfigurationHeaderItemType`
+
+* :ref:`SpecTypeBuildLibraryItemType`
+
+* :ref:`SpecTypeBuildStartFileItemType`
+
+.. _SpecTypeBuildLinkerOption:
+
+Build Linker Option
+^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall be an option for the linker. The options
+are used to link executables. The options defined by this attribute succeed
+the options presented to the item by the build item context.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildAdaTestProgramItemType`
+
+* :ref:`SpecTypeBuildScriptItemType`
+
+* :ref:`SpecTypeBuildTestProgramItemType`
+
+.. _SpecTypeBuildOptionAction:
+
+Build Option Action
+^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a build option action. Exactly one of the
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+append-test-cppflags
+ The attribute value shall be a string. It shall be the name of a test
+ program. The action appends the action value to the ``CPPFLAGS`` of the
+ test program. The name shall correspond to the name of a
+ :ref:`SpecTypeBuildTestProgramItemType` item. Due to the processing order
+ of items, there is no way to check if the name specified by the attribute
+ value is valid.
+
+assert-aligned
+ The attribute value shall be an integer number. The action asserts that the
+ action value is aligned according to the attribute value.
+
+assert-eq
+ The attribute value shall be a :ref:`SpecTypeBooleanOrIntegerOrString`. The
+ action asserts that the action value is equal to the attribute value.
+
+assert-ge
+ The attribute value shall be an :ref:`SpecTypeIntegerOrString`. The action
+ asserts that the action value is greater than or equal to the attribute
+ value.
+
+assert-gt
+ The attribute value shall be an :ref:`SpecTypeIntegerOrString`. The action
+ asserts that the action value is greater than the attribute value.
+
+assert-int16
+ The attribute shall have no value. The action asserts that the action value
+ is a valid signed 16-bit integer.
+
+assert-int32
+ The attribute shall have no value. The action asserts that the action value
+ is a valid signed 32-bit integer.
+
+assert-int64
+ The attribute shall have no value. The action asserts that the action value
+ is a valid signed 64-bit integer.
+
+assert-int8
+ The attribute shall have no value. The action asserts that the action value
+ is a valid signed 8-bit integer.
+
+assert-le
+ The attribute value shall be an :ref:`SpecTypeIntegerOrString`. The action
+ asserts that the action value is less than or equal to the attribute value.
+
+assert-lt
+ The attribute value shall be an :ref:`SpecTypeIntegerOrString`. The action
+ asserts that the action value is less than the attribute value.
+
+assert-ne
+ The attribute value shall be a :ref:`SpecTypeBooleanOrIntegerOrString`. The
+ action asserts that the action value is not equal to the attribute value.
+
+assert-power-of-two
+ The attribute shall have no value. The action asserts that the action value
+ is a power of two.
+
+assert-uint16
+ The attribute shall have no value. The action asserts that the action value
+ is a valid unsigned 16-bit integer.
+
+assert-uint32
+ The attribute shall have no value. The action asserts that the action value
+ is a valid unsigned 32-bit integer.
+
+assert-uint64
+ The attribute shall have no value. The action asserts that the action value
+ is a valid unsigned 64-bit integer.
+
+assert-uint8
+ The attribute shall have no value. The action asserts that the action value
+ is a valid unsigned 8-bit integer.
+
+check-cc
+ The attribute value shall be a
+ :ref:`SpecTypeBuildOptionCCompilerCheckAction`.
+
+check-cxx
+ The attribute value shall be a
+ :ref:`SpecTypeBuildOptionCXXCompilerCheckAction`.
+
+define
+ The attribute value shall be an optional string. The action adds a define
+ to the configuration set. If the attribute value is present, then it is
+ used as the name of the define, otherwise the ``name`` of the item is used.
+ The value of the define is the action value. If the action value is a
+ string, then it is quoted.
+
+define-condition
+ The attribute value shall be an optional string. The action adds a
+ conditional define to the configuration set. If the attribute value is
+ present, then it is used as the name of the define, otherwise the ``name``
+ of the item is used. The value of the define is the action value.
+
+define-unquoted
+ The attribute value shall be an optional string. The action adds a define
+ to the configuration set. If the attribute value is present, then it is
+ used as the name of the define, otherwise the ``name`` of the item is used.
+ The value of the define is the action value. If the action value is a
+ string, then it is not quoted.
+
+env-append
+ The attribute value shall be an optional string. The action appends the
+ action value to an environment of the configuration set. If the attribute
+ value is present, then it is used as the name of the environment variable,
+ otherwise the ``name`` of the item is used.
+
+env-assign
+ The attribute value shall be an optional string. The action assigns the
+ action value to an environment of the configuration set. If the attribute
+ value is present, then it is used as the name of the environment variable,
+ otherwise the ``name`` of the item is used.
+
+env-enable
+ The attribute value shall be an optional string. If the action value is
+ true, then a name is appended to the ``ENABLE`` environment variable of the
+ configuration set. If the attribute value is present, then it is used as
+ the name, otherwise the ``name`` of the item is used.
+
+find-program
+ The attribute shall have no value. The action tries to find the program
+ specified by the action value. Uses the ``${PATH}`` to find the program.
+ Returns the result of the find operation, e.g. a path to the program.
+
+find-tool
+ The attribute shall have no value. The action tries to find the tool
+ specified by the action value. Uses the tool paths specified by the
+ ``--rtems-tools`` command line option. Returns the result of the find
+ operation, e.g. a path to the program.
+
+format-and-define
+ The attribute value shall be an optional string. The action adds a define
+ to the configuration set. If the attribute value is present, then it is
+ used as the name of the define, otherwise the ``name`` of the item is used.
+ The value of the define is the action value. The value is formatted
+ according to the ``format`` attribute value.
+
+get-boolean
+ The attribute shall have no value. The action gets the action value for
+ subsequent actions from a configuration file variable named by the items
+ ``name`` attribute. If no such variable exists in the configuration file,
+ then the default value is used. The value is converted to a boolean.
+
+get-env
+ The attribute value shall be a string. The action gets the action value for
+ subsequent actions from the environment variable of the configuration set
+ named by the attribute value.
+
+get-integer
+ The attribute shall have no value. The action gets the action value for
+ subsequent actions from a configuration file variable named by the items
+ ``name`` attribute. If no such variable exists in the configuration file,
+ then the default value is used. The value is converted to an integer.
+
+get-string
+ The attribute shall have no value. The action gets the action value for
+ subsequent actions from a configuration file variable named by the items
+ ``name`` attribute. If no such variable exists in the configuration file,
+ then the default value is used. The value is converted to a string.
+
+script
+ The attribute value shall be a string. The action executes the attribute
+ value with the Python ``eval()`` function in the context of the script
+ action handler.
+
+set-test-state
+ The attribute value shall be a
+ :ref:`SpecTypeBuildOptionSetTestStateAction`.
+
+set-value
+ The attribute value shall be a :ref:`SpecTypeBuildOptionValue`. The action
+ sets the action value for subsequent actions to the attribute value.
+
+split
+ The attribute shall have no value. The action splits the action value.
+
+substitute
+ The attribute shall have no value. The action Performs a ``${VARIABLE}``
+ substitution on the action value. Use ``$$`` for a plain ``$`` character.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildOptionItemType`
+
+.. _SpecTypeBuildOptionCCompilerCheckAction:
+
+Build Option C Compiler Check Action
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a check done using the C compiler. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+cflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCCompilerOption`.
+
+fragment
+ The attribute value shall be a string. It shall be a code fragment used to
+ check the availability of a certain feature through compilation with the C
+ compiler. The resulting object is not linked to an executable.
+
+message
+ The attribute value shall be a string. It shall be a description of the
+ feature to check.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildOptionAction`
+
+.. _SpecTypeBuildOptionCXXCompilerCheckAction:
+
+Build Option C++ Compiler Check Action
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a check done using the C++ compiler. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+cxxflags
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeBuildCXXCompilerOption`.
+
+fragment
+ The attribute value shall be a string. It shall be a code fragment used to
+ check the availability of a certain feature through compilation with the
+ C++ compiler. The resulting object is not linked to an executable.
+
+message
+ The attribute value shall be a string. It shall be a description of the
+ feature to check.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildOptionAction`
+
+.. _SpecTypeBuildOptionDefaultByVariant:
+
+Build Option Default by Variant
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies build option default values by variant. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+value
+ The attribute value shall be a :ref:`SpecTypeBuildOptionValue`. It value
+ shall be the default value for the matching variants.
+
+variants
+ The attribute value shall be a list of strings. It shall be a list of
+ Python regular expression matching with the desired variants.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildOptionItemType`
+
+.. _SpecTypeBuildOptionName:
+
+Build Option Name
+^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall be the name of the build option. The
+value shall match with the regular expression "``^[a-zA-Z_][a-zA-Z0-9_]*$"``.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildOptionItemType`
+
+.. _SpecTypeBuildOptionSetTestStateAction:
+
+Build Option Set Test State Action
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies test states for a set of test programs.
+Generic attributes may be defined. Each attribute key shall be a
+:ref:`SpecTypeName`. The attribute value shall be a
+:ref:`SpecTypeBuildTestState`. The keys shall be test program names. The names
+shall correspond to the name of a :ref:`SpecTypeBuildTestProgramItemType` or
+:ref:`SpecTypeBuildAdaTestProgramItemType` item. Due to the processing order
+of items, there is no way to check if the name specified by the attribute key
+is valid.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildOptionAction`
+
+.. _SpecTypeBuildOptionValue:
+
+Build Option Value
+^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be of one of the following variants:
+
+* The value may be a boolean.
+
+* The value may be an integer number.
+
+* The value may be a list. Each list element shall be a string.
+
+* There may by be no value (null).
+
+* The value may be a string.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildOptionAction`
+
+* :ref:`SpecTypeBuildOptionDefaultByVariant`
+
+* :ref:`SpecTypeBuildOptionItemType`
+
+.. _SpecTypeBuildSource:
+
+Build Source
+^^^^^^^^^^^^
+
+The value shall be a string. It shall be a source file. The path to a source
+file shall be relative to the directory of the :file:`wscript`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildAdaTestProgramItemType`
+
+* :ref:`SpecTypeBuildBSPItemType`
+
+* :ref:`SpecTypeBuildLibraryItemType`
+
+* :ref:`SpecTypeBuildObjectsItemType`
+
+* :ref:`SpecTypeBuildStartFileItemType`
+
+* :ref:`SpecTypeBuildTestProgramItemType`
+
+.. _SpecTypeBuildTarget:
+
+Build Target
+^^^^^^^^^^^^
+
+The value shall be a string. It shall be the target file path. The path to the
+target file shall be relative to the directory of the :file:`wscript`. The
+target file is located in the build tree.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildAdaTestProgramItemType`
+
+* :ref:`SpecTypeBuildConfigurationFileItemType`
+
+* :ref:`SpecTypeBuildConfigurationHeaderItemType`
+
+* :ref:`SpecTypeBuildLibraryItemType`
+
+* :ref:`SpecTypeBuildStartFileItemType`
+
+* :ref:`SpecTypeBuildTestProgramItemType`
+
+.. _SpecTypeBuildTestState:
+
+Build Test State
+^^^^^^^^^^^^^^^^
+
+The value shall be a string. This string defines a test state. The value shall
+be an element of
+
+* "``benchmark``",
+
+* "``exclude``",
+
+* "``expected-fail``",
+
+* "``indeterminate``", and
+
+* "``user-input``".
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildOptionSetTestStateAction`
+
+.. _SpecTypeBuildUseAfterDirective:
+
+Build Use After Directive
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall be an internal static library identifier.
+They are used to link programs referenced by this item, e.g. ``z`` for
+``libz.a``. They are placed after the use items of the build item context.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildAdaTestProgramItemType`
+
+* :ref:`SpecTypeBuildGroupItemType`
+
+* :ref:`SpecTypeBuildScriptItemType`
+
+* :ref:`SpecTypeBuildTestProgramItemType`
+
+.. _SpecTypeBuildUseBeforeDirective:
+
+Build Use Before Directive
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall be an internal static library identifier.
+They are used to link programs referenced by this item, e.g. ``z`` for
+``libz.a``. They are placed before the use items of the build item context.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeBuildAdaTestProgramItemType`
+
+* :ref:`SpecTypeBuildGroupItemType`
+
+* :ref:`SpecTypeBuildScriptItemType`
+
+* :ref:`SpecTypeBuildTestProgramItemType`
+
+.. _SpecTypeConstraintLinkRole:
+
+Constraint Link Role
+^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``constraint``. It defines the constraint role of links. The link
+target shall be a constraint.
+
+.. _SpecTypeCopyright:
+
+Copyright
+^^^^^^^^^
+
+The value shall be a string. It shall be a copyright statement of a copyright
+holder of the specification item. The value
+
+* shall match with the regular expression
+ "``^\s*Copyright\s+\(C\)\s+[0-9]+,\s*[0-9]+\s+.+\s*$"``,
+
+* or, shall match with the regular expression
+ "``^\s*Copyright\s+\(C\)\s+[0-9]+\s+.+\s*$"``,
+
+* or, shall match with the regular expression
+ "``^\s*Copyright\s+\(C\)\s+.+\s*$"``.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeRootItemType`
+
+.. _SpecTypeEnabledXByExpression:
+
+Enabled-By Expression
+^^^^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be an expression which defines under which
+conditions the specification item or parts of it are enabled. The expression
+is evaluated with the use of an *enabled set*. This is a set of strings which
+indicate enabled features.
+
+A value of this type shall be of one of the following variants:
+
+* The value may be a boolean. This expression evaluates directly to the boolean
+ value.
+
+* The value may be a set of attributes. Each attribute defines an operator.
+ Exactly one of the explicitly defined attributes shall be specified. The
+ following attributes are explicitly defined for this type:
+
+ and
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeEnabledXByExpression`. The *and* operator evaluates to the
+ *logical and* of the evaluation results of the expressions in the list.
+
+ not
+ The attribute value shall be an :ref:`SpecTypeEnabledXByExpression`. The
+ *not* operator evaluates to the *logical not* of the evaluation results
+ of the expression.
+
+ or
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeEnabledXByExpression`. The *or* operator evaluates to the
+ *logical or* of the evaluation results of the expressions in the list.
+
+* The value may be a list. Each list element shall be an
+ :ref:`SpecTypeEnabledXByExpression`. This list of expressions evaluates to
+ the *logical or* of the evaluation results of the expressions in the list.
+
+* The value may be a string. If the value is in the *enabled set*, this
+ expression evaluates to true, otherwise to false.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeEnabledXByExpression`
+
+* :ref:`SpecTypeInterfaceIncludeLinkRole`
+
+* :ref:`SpecTypeRootItemType`
+
+Please have a look at the following example:
+
+.. code-block:: yaml
+
+ enabled-by:
+ and:
+ - RTEMS_NETWORKING
+ - not: RTEMS_SMP
+
+.. _SpecTypeGlossaryMembershipLinkRole:
+
+Glossary Membership Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``glossary-member``. It defines the glossary membership role of links.
+
+.. _SpecTypeIntegerOrString:
+
+Integer or String
+^^^^^^^^^^^^^^^^^
+
+A value of this type shall be of one of the following variants:
+
+* The value may be an integer number.
+
+* The value may be a string.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeApplicationConfigurationOptionConstraintSet`
+
+* :ref:`SpecTypeApplicationConfigurationValueOptionItemType`
+
+* :ref:`SpecTypeBuildOptionAction`
+
+.. _SpecTypeInterfaceBriefDescription:
+
+Interface Brief Description
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be of one of the following variants:
+
+* There may by be no value (null).
+
+* The value may be a string. It shall be the brief description of the
+ interface.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceCompoundItemType`
+
+* :ref:`SpecTypeInterfaceCompoundMemberDefinition`
+
+* :ref:`SpecTypeInterfaceDefineItemType`
+
+* :ref:`SpecTypeInterfaceEnumItemType`
+
+* :ref:`SpecTypeInterfaceEnumeratorItemType`
+
+* :ref:`SpecTypeInterfaceFunctionItemType`
+
+* :ref:`SpecTypeInterfaceGroupItemType`
+
+* :ref:`SpecTypeInterfaceMacroItemType`
+
+* :ref:`SpecTypeInterfaceTypedefItemType`
+
+* :ref:`SpecTypeInterfaceVariableItemType`
+
+.. _SpecTypeInterfaceCompoundDefinitionKind:
+
+Interface Compound Definition Kind
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It specifies how the interface compound is
+defined. It may be a typedef only, the struct or union only, or a typedef with
+a struct or union definition. The value shall be an element of
+
+* "``struct-only``",
+
+* "``typedef-and-struct``",
+
+* "``typedef-and-union``",
+
+* "``typedef-only``", and
+
+* "``union-only``".
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceCompoundItemType`
+
+.. _SpecTypeInterfaceCompoundMemberCompound:
+
+Interface Compound Member Compound
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the following types:
+
+* :ref:`SpecTypeInterfaceCompoundMemberDefinition` though the ``kind``
+ attribute if the value is ``struct``
+
+* :ref:`SpecTypeInterfaceCompoundMemberDefinition` though the ``kind``
+ attribute if the value is ``union``
+
+This set of attributes specifies an interface compound member compound. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+definition
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeInterfaceCompoundMemberDefinitionDirective`.
+
+.. _SpecTypeInterfaceCompoundMemberDeclaration:
+
+Interface Compound Member Declaration
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeInterfaceCompoundMemberDefinition` though
+the ``kind`` attribute if the value is ``member``. This set of attributes
+specifies an interface compound member declaration. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+definition
+ The attribute value shall be a string. It shall be the interface compound
+ member declaration. On the declaration a context-sensitive substitution of
+ item variables is performed.
+
+.. _SpecTypeInterfaceCompoundMemberDefinition:
+
+Interface Compound Member Definition
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies an interface compound member definition. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+brief
+ The attribute value shall be an :ref:`SpecTypeInterfaceBriefDescription`.
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+kind
+ The attribute value shall be a string. It shall be the interface compound
+ member kind.
+
+name
+ The attribute value shall be a string. It shall be the interface compound
+ member name.
+
+This type is refined by the following types:
+
+* :ref:`SpecTypeInterfaceCompoundMemberCompound`
+
+* :ref:`SpecTypeInterfaceCompoundMemberDeclaration`
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceCompoundMemberDefinitionDirective`
+
+* :ref:`SpecTypeInterfaceCompoundMemberDefinitionVariant`
+
+.. _SpecTypeInterfaceCompoundMemberDefinitionDirective:
+
+Interface Compound Member Definition Directive
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies an interface compound member definition
+directive. All explicitly defined attributes shall be specified. The following
+attributes are explicitly defined for this type:
+
+default
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceCompoundMemberDefinition`. The default definition
+ will be used if no variant-specific definition is enabled.
+
+variants
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeInterfaceCompoundMemberDefinitionVariant`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceCompoundItemType`
+
+* :ref:`SpecTypeInterfaceCompoundMemberCompound`
+
+.. _SpecTypeInterfaceCompoundMemberDefinitionVariant:
+
+Interface Compound Member Definition Variant
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies an interface compound member definition
+variant. All explicitly defined attributes shall be specified. The following
+attributes are explicitly defined for this type:
+
+definition
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceCompoundMemberDefinition`. The definition will be
+ used if the expression defined by the ``enabled-by`` attribute evaluates to
+ true. In generated header files, the expression is evaluated by the C
+ preprocessor.
+
+enabled-by
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceEnabledXByExpression`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceCompoundMemberDefinitionDirective`
+
+.. _SpecTypeInterfaceDefinition:
+
+Interface Definition
+^^^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be of one of the following variants:
+
+* There may by be no value (null).
+
+* The value may be a string. It shall be the definition. On the definition a
+ context-sensitive substitution of item variables is performed.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceDefinitionDirective`
+
+* :ref:`SpecTypeInterfaceDefinitionVariant`
+
+.. _SpecTypeInterfaceDefinitionDirective:
+
+Interface Definition Directive
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies an interface definition directive. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+default
+ The attribute value shall be an :ref:`SpecTypeInterfaceDefinition`. The
+ default definition will be used if no variant-specific definition is
+ enabled.
+
+variants
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeInterfaceDefinitionVariant`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceDefineItemType`
+
+* :ref:`SpecTypeInterfaceEnumeratorItemType`
+
+* :ref:`SpecTypeInterfaceMacroItemType`
+
+* :ref:`SpecTypeInterfaceTypedefItemType`
+
+* :ref:`SpecTypeInterfaceVariableItemType`
+
+.. _SpecTypeInterfaceDefinitionVariant:
+
+Interface Definition Variant
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies an interface definition variant. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+definition
+ The attribute value shall be an :ref:`SpecTypeInterfaceDefinition`. The
+ definition will be used if the expression defined by the ``enabled-by``
+ attribute evaluates to true. In generated header files, the expression is
+ evaluated by the C preprocessor.
+
+enabled-by
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceEnabledXByExpression`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceDefinitionDirective`
+
+.. _SpecTypeInterfaceDescription:
+
+Interface Description
+^^^^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be of one of the following variants:
+
+* There may by be no value (null).
+
+* The value may be a string. It shall be the description of the interface. The
+ description should be short and concentrate on the average case. All special
+ cases, usage notes, constraints, error conditions, configuration
+ dependencies, references, etc. should be described in the
+ :ref:`SpecTypeInterfaceNotes`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeApplicationConfigurationOptionItemType`
+
+* :ref:`SpecTypeInterfaceCompoundItemType`
+
+* :ref:`SpecTypeInterfaceCompoundMemberDefinition`
+
+* :ref:`SpecTypeInterfaceDefineItemType`
+
+* :ref:`SpecTypeInterfaceEnumItemType`
+
+* :ref:`SpecTypeInterfaceEnumeratorItemType`
+
+* :ref:`SpecTypeInterfaceFunctionItemType`
+
+* :ref:`SpecTypeInterfaceGroupItemType`
+
+* :ref:`SpecTypeInterfaceMacroItemType`
+
+* :ref:`SpecTypeInterfaceParameter`
+
+* :ref:`SpecTypeInterfaceReturnValue`
+
+* :ref:`SpecTypeInterfaceTypedefItemType`
+
+* :ref:`SpecTypeInterfaceVariableItemType`
+
+.. _SpecTypeInterfaceEnabledXByExpression:
+
+Interface Enabled-By Expression
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be an expression which defines under which
+conditions an interface definition is enabled. In generated header files, the
+expression is evaluated by the C preprocessor.
+
+A value of this type shall be of one of the following variants:
+
+* The value may be a boolean. It is converted to 0 or 1. It defines a symbol
+ in the expression.
+
+* The value may be a set of attributes. Each attribute defines an operator.
+ Exactly one of the explicitly defined attributes shall be specified. The
+ following attributes are explicitly defined for this type:
+
+ and
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeInterfaceEnabledXByExpression`. The *and* operator defines
+ a *logical and* of the expressions in the list.
+
+ not
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceEnabledXByExpression`. The *not* operator defines
+ a *logical not* of the expression.
+
+ or
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeInterfaceEnabledXByExpression`. The *or* operator defines a
+ *logical or* of the expressions in the list.
+
+* The value may be a list. Each list element shall be an
+ :ref:`SpecTypeInterfaceEnabledXByExpression`. It defines a *logical or* of
+ the expressions in the list.
+
+* The value may be a string. It defines a symbol in the expression.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceCompoundMemberDefinitionVariant`
+
+* :ref:`SpecTypeInterfaceDefinitionVariant`
+
+* :ref:`SpecTypeInterfaceEnabledXByExpression`
+
+* :ref:`SpecTypeInterfaceFunctionDefinitionVariant`
+
+.. _SpecTypeInterfaceEnumDefinitionKind:
+
+Interface Enum Definition Kind
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It specifies how the enum is defined. It may be a
+typedef only, the enum only, or a typedef with an enum definition. The value
+shall be an element of
+
+* "``enum-only``",
+
+* "``typedef-and-enum``", and
+
+* "``typedef-only``".
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceEnumItemType`
+
+.. _SpecTypeInterfaceEnumeratorLinkRole:
+
+Interface Enumerator Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``interface-enumerator``. It defines the interface enumerator role of
+links.
+
+.. _SpecTypeInterfaceFunctionDefinition:
+
+Interface Function Definition
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a function definition. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+body
+ The attribute value shall be an optional string. If the value is present,
+ then it shall be the definition of a static inline function. On the
+ function definition a context-sensitive substitution of item variables is
+ performed. If no value is present, then the function is declared as an
+ external function.
+
+params
+ The attribute value shall be a list of strings. It shall be the list of
+ parameter declarations of the function. On the function parameter
+ declarations a context-sensitive substitution of item variables is
+ performed.
+
+return
+ The attribute value shall be a string. It shall be the function return
+ type. On the return type a context-sensitive substitution of item
+ variables is performed.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceFunctionDefinitionDirective`
+
+* :ref:`SpecTypeInterfaceFunctionDefinitionVariant`
+
+.. _SpecTypeInterfaceFunctionDefinitionDirective:
+
+Interface Function Definition Directive
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a function definition directive. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+default
+ The attribute value shall be an :ref:`SpecTypeInterfaceFunctionDefinition`.
+ The default definition will be used if no variant-specific definition is
+ enabled.
+
+variants
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeInterfaceFunctionDefinitionVariant`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceFunctionItemType`
+
+.. _SpecTypeInterfaceFunctionDefinitionVariant:
+
+Interface Function Definition Variant
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a function definition variant. All explicitly
+defined attributes shall be specified. The following attributes are explicitly
+defined for this type:
+
+definition
+ The attribute value shall be an :ref:`SpecTypeInterfaceFunctionDefinition`.
+ The definition will be used if the expression defined by the ``enabled-by``
+ attribute evaluates to true. In generated header files, the expression is
+ evaluated by the C preprocessor.
+
+enabled-by
+ The attribute value shall be an
+ :ref:`SpecTypeInterfaceEnabledXByExpression`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceFunctionDefinitionDirective`
+
+.. _SpecTypeInterfaceGroupIdentifier:
+
+Interface Group Identifier
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall be the identifier of the interface group.
+The value shall match with the regular expression "``^[A-Z][a-zA-Z0-9]*$"``.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceGroupItemType`
+
+.. _SpecTypeInterfaceGroupMembershipLinkRole:
+
+Interface Group Membership Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``interface-ingroup``. It defines the interface group membership role
+of links.
+
+.. _SpecTypeInterfaceIncludeLinkRole:
+
+Interface Include Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``interface-include``. It defines the interface include role of links
+and is used to indicate that an interface container includes another interface
+container. For example, one header file includes another header file. All
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+enabled-by
+ The attribute value shall be an :ref:`SpecTypeEnabledXByExpression`. It
+ shall define under which conditions the interface container is included.
+
+.. _SpecTypeInterfaceNotes:
+
+Interface Notes
+^^^^^^^^^^^^^^^
+
+A value of this type shall be of one of the following variants:
+
+* There may by be no value (null).
+
+* The value may be a string. It shall be the notes for the interface.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeApplicationConfigurationOptionItemType`
+
+* :ref:`SpecTypeInterfaceCompoundItemType`
+
+* :ref:`SpecTypeInterfaceDefineItemType`
+
+* :ref:`SpecTypeInterfaceEnumeratorItemType`
+
+* :ref:`SpecTypeInterfaceFunctionItemType`
+
+* :ref:`SpecTypeInterfaceMacroItemType`
+
+* :ref:`SpecTypeInterfaceTypedefItemType`
+
+* :ref:`SpecTypeInterfaceVariableItemType`
+
+.. _SpecTypeInterfaceParameter:
+
+Interface Parameter
+^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies an interface parameter. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+dir
+ The attribute value shall be an :ref:`SpecTypeInterfaceParameterDirection`.
+
+name
+ The attribute value shall be a string. It shall be the interface parameter
+ name.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceFunctionItemType`
+
+* :ref:`SpecTypeInterfaceMacroItemType`
+
+.. _SpecTypeInterfaceParameterDirection:
+
+Interface Parameter Direction
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be of one of the following variants:
+
+* There may by be no value (null).
+
+* The value may be a string. It specifies the interface parameter direction.
+ The value shall be an element of
+
+ * "``in``",
+
+ * "``out``", and
+
+ * "``inout``".
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceParameter`
+
+.. _SpecTypeInterfacePlacementLinkRole:
+
+Interface Placement Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``interface-placement``. It defines the interface placement role of
+links. It is used to indicate that an interface definition is placed into an
+interface container, for example a header file.
+
+.. _SpecTypeInterfaceReturnDirective:
+
+Interface Return Directive
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies an interface return. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+return
+ The attribute value shall be an optional string. It shall describe the
+ interface return for unspecified return values.
+
+return-values
+ The attribute value shall be a list. Each list element shall be an
+ :ref:`SpecTypeInterfaceReturnValue`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceFunctionItemType`
+
+* :ref:`SpecTypeInterfaceMacroItemType`
+
+.. _SpecTypeInterfaceReturnValue:
+
+Interface Return Value
+^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies an interface return value. All explicitly
+defined attributes shall be specified. The following attributes are explicitly
+defined for this type:
+
+description
+ The attribute value shall be an :ref:`SpecTypeInterfaceDescription`.
+
+value
+ The attribute value shall be a :ref:`SpecTypeBooleanOrIntegerOrString`. It
+ shall be the described interface return value.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeInterfaceReturnDirective`
+
+.. _SpecTypeInterfaceTargetLinkRole:
+
+Interface Target Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``interface-target``. It defines the interface target role of links.
+It is used for interface forward declarations.
+
+.. _SpecTypeLink:
+
+Link
+^^^^
+
+This set of attributes specifies a link from one specification item to another
+specification item. The links in a list are ordered. The first link in the
+list is processed first. All explicitly defined attributes shall be specified.
+The following attributes are explicitly defined for this type:
+
+role
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the role of
+ the link.
+
+uid
+ The attribute value shall be an :ref:`SpecTypeUID`. It shall be the
+ absolute or relative UID of the link target item.
+
+This type is refined by the following types:
+
+* :ref:`SpecTypeApplicationConfigurationGroupMemberLinkRole`
+
+* :ref:`SpecTypeBuildDependencyLinkRole`
+
+* :ref:`SpecTypeConstraintLinkRole`
+
+* :ref:`SpecTypeGlossaryMembershipLinkRole`
+
+* :ref:`SpecTypeInterfaceEnumeratorLinkRole`
+
+* :ref:`SpecTypeInterfaceGroupMembershipLinkRole`
+
+* :ref:`SpecTypeInterfaceIncludeLinkRole`
+
+* :ref:`SpecTypeInterfacePlacementLinkRole`
+
+* :ref:`SpecTypeInterfaceTargetLinkRole`
+
+* :ref:`SpecTypeRequirementRefinementLinkRole`
+
+* :ref:`SpecTypeRequirementValidationLinkRole`
+
+* :ref:`SpecTypeSpecificationMemberLinkRole`
+
+* :ref:`SpecTypeSpecificationRefinementLinkRole`
+
+This type is used by the following types:
+
+* :ref:`SpecTypeRootItemType`
+
+* :ref:`SpecTypeTestCaseAction`
+
+* :ref:`SpecTypeTestCaseCheck`
+
+.. _SpecTypeName:
+
+Name
+^^^^
+
+The value shall be a string. A string is a valid name if it matches with the
+``^([a-z][a-z0-9-]*|SPDX-License-Identifier)$`` regular expression.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeApplicationConfigurationOptionItemType`
+
+* :ref:`SpecTypeBuildItemType`
+
+* :ref:`SpecTypeGlossaryItemType`
+
+* :ref:`SpecTypeInterfaceItemType`
+
+* :ref:`SpecTypeLink`
+
+* :ref:`SpecTypeRequirementItemType`
+
+* :ref:`SpecTypeRootItemType`
+
+* :ref:`SpecTypeSpecificationAttributeValue`
+
+* :ref:`SpecTypeSpecificationGenericAttributes`
+
+* :ref:`SpecTypeSpecificationItemType`
+
+* :ref:`SpecTypeSpecificationList`
+
+* :ref:`SpecTypeSpecificationRefinementLinkRole`
+
+.. _SpecTypeOptionalString:
+
+Optional String
+^^^^^^^^^^^^^^^
+
+A value of this type shall be of one of the following variants:
+
+* There may by be no value (null).
+
+* The value may be a string.
+
+.. _SpecTypeRequirementFunctionalType:
+
+Requirement Functional Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. This type shall be used for functional requirement
+types. The value shall be an element of
+
+* "``capability``",
+
+* "``dependability-function``",
+
+* "``function``",
+
+* "``operational``", and
+
+* "``safety-function``".
+
+This type is used by the following types:
+
+* :ref:`SpecTypeFunctionalRequirementItemType`
+
+.. _SpecTypeRequirementNonXFunctionalType:
+
+Requirement Non-Functional Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. This type shall be used for non-functional
+requirement types. The value shall be an element of
+
+* "``build-configuration``",
+
+* "``constraint``",
+
+* "``design``",
+
+* "``documentation``",
+
+* "``interface``",
+
+* "``interface-requirement``",
+
+* "``maintainability``",
+
+* "``performance``",
+
+* "``portability``",
+
+* "``quality``",
+
+* "``reliability``",
+
+* "``resource``", and
+
+* "``safety``".
+
+This type is used by the following types:
+
+* :ref:`SpecTypeNonXFunctionalRequirementItemType`
+
+.. _SpecTypeRequirementReference:
+
+Requirement Reference
+^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a requirement reference. All explicitly
+defined attributes shall be specified. The following attributes are explicitly
+defined for this type:
+
+identifier
+ The attribute value shall be a string. It shall be the type-specific
+ identifier of the reference target. For *group* references use the Doxygen
+ group identifier.
+
+type
+ The attribute value shall be a :ref:`SpecTypeRequirementReferenceType`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeRequirementItemType`
+
+.. _SpecTypeRequirementReferenceType:
+
+Requirement Reference Type
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It specifies the type of a requirement reference.
+The value shall be an element of
+
+* "``define``",
+
+* "``file``",
+
+* "``function``",
+
+* "``group``",
+
+* "``macro``", and
+
+* "``variable``".
+
+This type is used by the following types:
+
+* :ref:`SpecTypeRequirementReference`
+
+.. _SpecTypeRequirementRefinementLinkRole:
+
+Requirement Refinement Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``requirement-refinement``. It defines the requirement refinement role
+of links.
+
+.. _SpecTypeRequirementText:
+
+Requirement Text
+^^^^^^^^^^^^^^^^
+
+The value shall be a string. It shall state a requirement or constraint. The
+value shall not contain an element of
+
+* "``acceptable``",
+
+* "``adequate``",
+
+* "``almost always``",
+
+* "``and/or``",
+
+* "``appropriate``",
+
+* "``approximately``",
+
+* "``as far as possible``",
+
+* "``as much as practicable``",
+
+* "``best``",
+
+* "``best possible``",
+
+* "``easy``",
+
+* "``efficient``",
+
+* "``e.g.``",
+
+* "``enable``",
+
+* "``enough``",
+
+* "``etc.``",
+
+* "``few``",
+
+* "``first rate``",
+
+* "``flexible``",
+
+* "``generally``",
+
+* "``goal``",
+
+* "``graceful``",
+
+* "``great``",
+
+* "``greatest``",
+
+* "``ideally``",
+
+* "``i.e.``",
+
+* "``if possible``",
+
+* "``in most cases``",
+
+* "``large``",
+
+* "``many``",
+
+* "``maximize``",
+
+* "``minimize``",
+
+* "``most``",
+
+* "``multiple``",
+
+* "``necessary``",
+
+* "``numerous``",
+
+* "``optimize``",
+
+* "``ought to``",
+
+* "``probably``",
+
+* "``quick``",
+
+* "``rapid``",
+
+* "``reasonably``",
+
+* "``relevant``",
+
+* "``robust``",
+
+* "``satisfactory``",
+
+* "``several``",
+
+* "``shall be included but not limited to``",
+
+* "``simple``",
+
+* "``small``",
+
+* "``some``",
+
+* "``state of the art``",
+
+* "``sufficient``",
+
+* "``suitable``",
+
+* "``support``",
+
+* "``systematically``",
+
+* "``transparent``",
+
+* "``typical``",
+
+* "``user friendly``",
+
+* "``usually``",
+
+* "``versatile``", and
+
+* "``when necessary``".
+
+This type is used by the following types:
+
+* :ref:`SpecTypeApplicationConfigurationGroupItemType`
+
+* :ref:`SpecTypeApplicationConfigurationOptionConstraintSet`
+
+* :ref:`SpecTypeApplicationConfigurationOptionItemType`
+
+* :ref:`SpecTypeConstraintItemType`
+
+* :ref:`SpecTypeRequirementItemType`
+
+.. _SpecTypeRequirementValidationLinkRole:
+
+Requirement Validation Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``validation``. It defines the requirement validation role of links.
+
+.. _SpecTypeRequirementValidationMethod:
+
+Requirement Validation Method
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. This value type characterizes a requirement
+validation method (except validation by test). The value shall be an element of
+
+* "``by-analysis``",
+
+* "``by-inspection``", and
+
+* "``by-review-of-design``".
+
+This type is used by the following types:
+
+* :ref:`SpecTypeRequirementValidationItemType`
+
+.. _SpecTypeSPDXLicenseIdentifier:
+
+SPDX License Identifier
+^^^^^^^^^^^^^^^^^^^^^^^
+
+The value shall be a string. It defines the license of the item expressed
+though an SPDX License Identifier. The value
+
+* shall be equal to "``CC-BY-SA-4.0 OR BSD-2-Clause``",
+
+* or, shall be equal to "``BSD-2-Clause``",
+
+* or, shall be equal to "``CC-BY-SA-4.0``".
+
+This type is used by the following types:
+
+* :ref:`SpecTypeRootItemType`
+
+.. _SpecTypeSpecificationAttribute:
+
+Specification Attribute
+^^^^^^^^^^^^^^^^^^^^^^^
+
+Generic attributes may be defined. Each attribute key shall be a
+:ref:`SpecTypeName`. The attribute value shall be a
+:ref:`SpecTypeSpecificationAttributeValue`. The generic attributes specify an
+attribute set.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationAttributeSet`
+
+.. _SpecTypeSpecificationAttributeSet:
+
+Specification Attribute Set
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a set of attributes. The following explicitly
+defined attributes are required:
+
+* ``attributes``
+
+* ``description``
+
+* ``required-attributes``
+
+The following attributes are explicitly defined for this type:
+
+attributes
+ The attribute value shall be a :ref:`SpecTypeSpecificationAttribute`. It
+ shall be the specification of the set of explicitly defined attributes.
+
+description
+ The attribute value shall be an optional string. It shall be the
+ description of the attribute set.
+
+generic-attributes
+ The attribute value shall be a
+ :ref:`SpecTypeSpecificationGenericAttributes`. It shall be the
+ specification of the generic attributes of the attribute set.
+
+required-attributes
+ The attribute value shall be a
+ :ref:`SpecTypeSpecificationRequiredAttributes`. It shall be the set of
+ required attributes of the attribute set.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationInformation`
+
+.. _SpecTypeSpecificationAttributeValue:
+
+Specification Attribute Value
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies an attribute value. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+description
+ The attribute value shall be an optional string. It shall be the
+ description of the attribute value.
+
+spec-type
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the
+ specification type of the attribute value.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationAttribute`
+
+.. _SpecTypeSpecificationBooleanValue:
+
+Specification Boolean Value
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This attribute set specifies a boolean value. Only the ``description``
+attribute is required. The following attributes are explicitly defined for this
+type:
+
+assert
+ The attribute value shall be a boolean. This optional attribute defines the
+ value constraint of the specified boolean value. If the value of the
+ assert attribute is true, then the value of the specified boolean value
+ shall be true. If the value of the assert attribute is false, then the
+ value of the specified boolean value shall be false. In case the assert
+ attribute is not present, then the value of the specified boolean value may
+ be true or false.
+
+description
+ The attribute value shall be an optional string. It shall be the
+ description of the specified boolean value.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationInformation`
+
+.. _SpecTypeSpecificationFloatingXPointAssert:
+
+Specification Floating-Point Assert
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be an expression which asserts that the
+floating-point value of the specified attribute satisfies the required
+constraints.
+
+A value of this type shall be of one of the following variants:
+
+* The value may be a set of attributes. Each attribute defines an operator.
+ Exactly one of the explicitly defined attributes shall be specified. The
+ following attributes are explicitly defined for this type:
+
+ and
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeSpecificationFloatingXPointAssert`. The *and* operator
+ evaluates to the *logical and* of the evaluation results of the
+ expressions in the list.
+
+ eq
+ The attribute value shall be a floating-point number. The *eq* operator
+ evaluates to true, if the value to check is equal to the value of this
+ attribute, otherwise to false.
+
+ ge
+ The attribute value shall be a floating-point number. The *ge* operator
+ evaluates to true, if the value to check is greater than or equal to the
+ value of this attribute, otherwise to false.
+
+ gt
+ The attribute value shall be a floating-point number. The *gt* operator
+ evaluates to true, if the value to check is greater than the value of
+ this attribute, otherwise to false.
+
+ le
+ The attribute value shall be a floating-point number. The *le* operator
+ evaluates to true, if the value to check is less than or equal to the
+ value of this attribute, otherwise to false.
+
+ lt
+ The attribute value shall be a floating-point number. The *lt* operator
+ evaluates to true, if the value to check is less than the value of this
+ attribute, otherwise to false.
+
+ ne
+ The attribute value shall be a floating-point number. The *ne* operator
+ evaluates to true, if the value to check is not equal to the value of
+ this attribute, otherwise to false.
+
+ not
+ The attribute value shall be a
+ :ref:`SpecTypeSpecificationFloatingXPointAssert`. The *not* operator
+ evaluates to the *logical not* of the evaluation results of the
+ expression.
+
+ or
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeSpecificationFloatingXPointAssert`. The *or* operator
+ evaluates to the *logical or* of the evaluation results of the
+ expressions in the list.
+
+* The value may be a list. Each list element shall be a
+ :ref:`SpecTypeSpecificationFloatingXPointAssert`. This list of expressions
+ evaluates to the *logical or* of the evaluation results of the expressions in
+ the list.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationFloatingXPointAssert`
+
+* :ref:`SpecTypeSpecificationFloatingXPointValue`
+
+.. _SpecTypeSpecificationFloatingXPointValue:
+
+Specification Floating-Point Value
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a floating-point value. Only the
+``description`` attribute is required. The following attributes are explicitly
+defined for this type:
+
+assert
+ The attribute value shall be a
+ :ref:`SpecTypeSpecificationFloatingXPointAssert`. This optional attribute
+ defines the value constraints of the specified floating-point value. In
+ case the assert attribute is not present, then the value of the specified
+ floating-point value may be every valid floating-point number.
+
+description
+ The attribute value shall be an optional string. It shall be the
+ description of the specified floating-point value.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationInformation`
+
+.. _SpecTypeSpecificationGenericAttributes:
+
+Specification Generic Attributes
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies generic attributes. Generic attributes are
+attributes which are not explicitly defined. They are restricted to a uniform
+attribute value type. All explicitly defined attributes shall be specified. The
+following attributes are explicitly defined for this type:
+
+description
+ The attribute value shall be an optional string. It shall be the
+ description of the generic attributes.
+
+spec-type
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the
+ specification type of the generic attribute values.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationAttributeSet`
+
+.. _SpecTypeSpecificationInformation:
+
+Specification Information
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies attribute values. At least one of the
+explicitly defined attributes shall be specified. The following attributes are
+explicitly defined for this type:
+
+bool
+ The attribute value shall be a :ref:`SpecTypeSpecificationBooleanValue`. It
+ shall specify a boolean value.
+
+dict
+ The attribute value shall be a :ref:`SpecTypeSpecificationAttributeSet`. It
+ shall specify a set of attributes.
+
+float
+ The attribute value shall be a
+ :ref:`SpecTypeSpecificationFloatingXPointValue`. It shall specify a
+ floating-point value.
+
+int
+ The attribute value shall be a :ref:`SpecTypeSpecificationIntegerValue`. It
+ shall specify an integer value.
+
+list
+ The attribute value shall be a :ref:`SpecTypeSpecificationList`. It shall
+ specify a list of attributes or values.
+
+none
+ The attribute shall have no value. It specifies that no value is required.
+
+str
+ The attribute value shall be a :ref:`SpecTypeSpecificationStringValue`. It
+ shall specify a string.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationItemType`
+
+.. _SpecTypeSpecificationIntegerAssert:
+
+Specification Integer Assert
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be an expression which asserts that the integer
+value of the specified attribute satisfies the required constraints.
+
+A value of this type shall be of one of the following variants:
+
+* The value may be a set of attributes. Each attribute defines an operator.
+ Exactly one of the explicitly defined attributes shall be specified. The
+ following attributes are explicitly defined for this type:
+
+ and
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeSpecificationIntegerAssert`. The *and* operator evaluates
+ to the *logical and* of the evaluation results of the expressions in the
+ list.
+
+ eq
+ The attribute value shall be an integer number. The *eq* operator
+ evaluates to true, if the value to check is equal to the value of this
+ attribute, otherwise to false.
+
+ ge
+ The attribute value shall be an integer number. The *ge* operator
+ evaluates to true, if the value to check is greater than or equal to the
+ value of this attribute, otherwise to false.
+
+ gt
+ The attribute value shall be an integer number. The *gt* operator
+ evaluates to true, if the value to check is greater than the value of
+ this attribute, otherwise to false.
+
+ le
+ The attribute value shall be an integer number. The *le* operator
+ evaluates to true, if the value to check is less than or equal to the
+ value of this attribute, otherwise to false.
+
+ lt
+ The attribute value shall be an integer number. The *lt* operator
+ evaluates to true, if the value to check is less than the value of this
+ attribute, otherwise to false.
+
+ ne
+ The attribute value shall be an integer number. The *ne* operator
+ evaluates to true, if the value to check is not equal to the value of
+ this attribute, otherwise to false.
+
+ not
+ The attribute value shall be a :ref:`SpecTypeSpecificationIntegerAssert`.
+ The *not* operator evaluates to the *logical not* of the evaluation
+ results of the expression.
+
+ or
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeSpecificationIntegerAssert`. The *or* operator evaluates to
+ the *logical or* of the evaluation results of the expressions in the
+ list.
+
+* The value may be a list. Each list element shall be a
+ :ref:`SpecTypeSpecificationIntegerAssert`. This list of expressions evaluates
+ to the *logical or* of the evaluation results of the expressions in the list.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationIntegerAssert`
+
+* :ref:`SpecTypeSpecificationIntegerValue`
+
+.. _SpecTypeSpecificationIntegerValue:
+
+Specification Integer Value
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies an integer value. Only the ``description``
+attribute is required. The following attributes are explicitly defined for this
+type:
+
+assert
+ The attribute value shall be a :ref:`SpecTypeSpecificationIntegerAssert`.
+ This optional attribute defines the value constraints of the specified
+ integer value. In case the assert attribute is not present, then the value
+ of the specified integer value may be every valid integer number.
+
+description
+ The attribute value shall be an optional string. It shall be the
+ description of the specified integer value.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationInformation`
+
+.. _SpecTypeSpecificationList:
+
+Specification List
+^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a list of attributes or values. All explicitly
+defined attributes shall be specified. The following attributes are explicitly
+defined for this type:
+
+description
+ The attribute value shall be an optional string. It shall be the
+ description of the list.
+
+spec-type
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the
+ specification type of elements of the list.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationInformation`
+
+.. _SpecTypeSpecificationMemberLinkRole:
+
+Specification Member Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``spec-member``. It defines the specification membership role of
+links.
+
+.. _SpecTypeSpecificationRefinementLinkRole:
+
+Specification Refinement Link Role
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This type refines the :ref:`SpecTypeLink` though the ``role`` attribute if the
+value is ``spec-refinement``. It defines the specification refinement role of
+links. All explicitly defined attributes shall be specified. The following
+attributes are explicitly defined for this type:
+
+spec-key
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the
+ specification type refinement attribute key of the specification
+ refinement.
+
+spec-value
+ The attribute value shall be a :ref:`SpecTypeName`. It shall be the
+ specification type refinement attribute value of the specification
+ refinement.
+
+.. _SpecTypeSpecificationRequiredAttributes:
+
+Specification Required Attributes
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This attribute value defines which of the explicitly defined attributes are
+required.
+
+A value of this type shall be of one of the following variants:
+
+* The value may be a list. Each list element shall be a :ref:`SpecTypeName`.
+ This list defines the required attributes through their keys.
+
+* The value may be a string. This string defines the how many explicitly
+ defined attributes are required. The value shall be an element of
+
+ * "``all``",
+
+ * "``at-least-one``",
+
+ * "``at-most-one``",
+
+ * "``exactly-one``", and
+
+ * "``none``".
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationAttributeSet`
+
+.. _SpecTypeSpecificationStringAssert:
+
+Specification String Assert
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+A value of this type shall be an expression which asserts that the string of
+the specified attribute satisfies the required constraints.
+
+A value of this type shall be of one of the following variants:
+
+* The value may be a set of attributes. Each attribute defines an operator.
+ Exactly one of the explicitly defined attributes shall be specified. The
+ following attributes are explicitly defined for this type:
+
+ and
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeSpecificationStringAssert`. The *and* operator evaluates to
+ the *logical and* of the evaluation results of the expressions in the
+ list.
+
+ contains
+ The attribute value shall be a list of strings. The *contains* operator
+ evaluates to true, if the string to check converted to lower case with
+ all white space characters converted to a single space character contains
+ a string of the list of strings of this attribute, otherwise to false.
+
+ eq
+ The attribute value shall be a string. The *eq* operator evaluates to
+ true, if the string to check is equal to the value of this attribute,
+ otherwise to false.
+
+ ge
+ The attribute value shall be a string. The *ge* operator evaluates to
+ true, if the string to check is greater than or equal to the value of
+ this attribute, otherwise to false.
+
+ gt
+ The attribute value shall be a string. The *gt* operator evaluates to
+ true, if the string to check is greater than the value of this attribute,
+ otherwise to false.
+
+ in
+ The attribute value shall be a list of strings. The *in* operator
+ evaluates to true, if the string to check is contained in the list of
+ strings of this attribute, otherwise to false.
+
+ le
+ The attribute value shall be a string. The *le* operator evaluates to
+ true, if the string to check is less than or equal to the value of this
+ attribute, otherwise to false.
+
+ lt
+ The attribute value shall be a string. The *lt* operator evaluates to
+ true, if the string to check is less than the value of this attribute,
+ otherwise to false.
+
+ ne
+ The attribute value shall be a string. The *ne* operator evaluates to
+ true, if the string to check is not equal to the value of this attribute,
+ otherwise to false.
+
+ not
+ The attribute value shall be a :ref:`SpecTypeSpecificationStringAssert`.
+ The *not* operator evaluates to the *logical not* of the evaluation
+ results of the expression.
+
+ or
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeSpecificationStringAssert`. The *or* operator evaluates to
+ the *logical or* of the evaluation results of the expressions in the
+ list.
+
+ re
+ The attribute value shall be a string. The *re* operator evaluates to
+ true, if the string to check matches with the regular expression of this
+ attribute, otherwise to false.
+
+ uid
+ The attribute shall have no value. The *uid* operator evaluates to true,
+ if the string is a valid UID, otherwise to false.
+
+* The value may be a list. Each list element shall be a
+ :ref:`SpecTypeSpecificationStringAssert`. This list of expressions evaluates
+ to the *logical or* of the evaluation results of the expressions in the list.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationStringAssert`
+
+* :ref:`SpecTypeSpecificationStringValue`
+
+.. _SpecTypeSpecificationStringValue:
+
+Specification String Value
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a string. Only the ``description`` attribute
+is required. The following attributes are explicitly defined for this type:
+
+assert
+ The attribute value shall be a :ref:`SpecTypeSpecificationStringAssert`.
+ This optional attribute defines the constraints of the specified string.
+ In case the assert attribute is not present, then the specified string may
+ be every valid string.
+
+description
+ The attribute value shall be an optional string. It shall be the
+ description of the specified string attribute.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeSpecificationInformation`
+
+.. _SpecTypeTestCaseAction:
+
+Test Case Action
+^^^^^^^^^^^^^^^^
+
+This set of attributes specifies a test case action. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+action
+ The attribute value shall be a string. It shall be the test case action
+ code.
+
+checks
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeTestCaseCheck`.
+
+description
+ The attribute value shall be an optional string. It shall be the test case
+ action description.
+
+links
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeLink`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeTestCaseItemType`
+
+.. _SpecTypeTestCaseCheck:
+
+Test Case Check
+^^^^^^^^^^^^^^^
+
+This set of attributes specifies a test case check. All explicitly defined
+attributes shall be specified. The following attributes are explicitly defined
+for this type:
+
+check
+ The attribute value shall be a string. It shall be the test case check
+ code.
+
+description
+ The attribute value shall be an optional string. It shall be the test case
+ check description.
+
+links
+ The attribute value shall be a list. Each list element shall be a
+ :ref:`SpecTypeLink`.
+
+This type is used by the following types:
+
+* :ref:`SpecTypeTestCaseAction`
+
+.. _SpecTypeTestName:
-inputs
- The inputs to execute the test case.
+Test Name
+^^^^^^^^^
-outputs
- The expected outputs.
+The value shall be a string. It shall be the name of a test suite or test case.
+It shall be formatted in the style of a caption. If shall form a valid C
+designator after removal of all white space characters. The value shall match
+with the regular expression "``^[A-Z][a-zA-Z0-9 _]+$"``.
-The test case code may be also contained in the test case specification
-item in a *code* attribute. This is subject to discussion on the RTEMS
-mailing list. Alternatively, the test code could be placed directly in
-source files. A method is required to find the test case specification of
-a test case code and vice versa.
+This type is used by the following types:
-.. _ReqEngResAndPerf:
+* :ref:`SpecTypeTestCaseItemType`
-Resources and Performance
--------------------------
+* :ref:`SpecTypeTestSuiteItemType`
-Normally, resource and performance requirements are formulated like this:
+.. _SpecTypeUID:
-* The resource U shall need less than V storage units.
+UID
+^^^
-* The operation Y shall complete within X time units.
+The value shall be a string. The string shall be a valid absolute or relative
+item UID.
-Such statements are difficult to make for a software product like RTEMS which
-runs on many different target platforms in various configurations. So, the
-performance requirements of RTEMS shall be stated in terms of benchmarks. The
-benchmarks are run on the project-specific target platform and configuration.
-The results obtained by the benchmark runs are reported in a human readable
-presentation. The application designer can then use the benchmark results to
-determine if its system performance requirements are met. The benchmarks shall
-be executed under different environment conditions, e.g. varying cache states
-(dirty, empty, valid) and system bus load generated by other processors. The
-application designer shall have the ability to add additional environment
-conditions, e.g. system bus load by DMA engines or different system bus
-arbitration schemes.
+This type is used by the following types:
-To catch resource and performance regressions via test suite runs there shall be
-a means to specify threshold values for the measured quantities. The threshold
-values should be provided for each validation platform. How this can be done
-and if the threshold values are maintained by the RTEMS Project is subject to
-discussion.
+* :ref:`SpecTypeLink`
diff --git a/eng/req/req-for-req.rst b/eng/req/req-for-req.rst
index d38e384..9225e95 100644
--- a/eng/req/req-for-req.rst
+++ b/eng/req/req-for-req.rst
@@ -346,4 +346,49 @@ Justification of Requirements
Each requirement shall have a rationale or justification recorded in a
dedicated section of the requirement file. See *rationale* attribute for
-:ref:`ReqEngSpecItems`.
+:ref:`ReqEngSpecificationItems`.
+
+.. _ReqEngValidation:
+
+Requirement Validation
+----------------------
+
+The validation of each :ref:`SpecTypeRequirementItemType` item shall be
+accomplished by one or more specification items of the types
+:ref:`SpecTypeTestCaseItemType` or :ref:`SpecTypeRequirementValidationItemType`
+through a link from the validation item to the requirement item with the
+:ref:`SpecTypeRequirementValidationLinkRole`.
+
+Validation by test is strongly recommended. The choice of any other validation
+method shall be strongly justified. The requirements author is obligated to
+provide the means to validate the requirement with detailed instructions.
+
+.. _ReqEngResAndPerf:
+
+Resources and Performance
+-------------------------
+
+Normally, resource and performance requirements are formulated like this:
+
+* The resource U shall need less than V storage units.
+
+* The operation Y shall complete within X time units.
+
+Such statements are difficult to make for a software product like RTEMS which
+runs on many different target platforms in various configurations. So, the
+performance requirements of RTEMS shall be stated in terms of benchmarks. The
+benchmarks are run on the project-specific target platform and configuration.
+The results obtained by the benchmark runs are reported in a human readable
+presentation. The application designer can then use the benchmark results to
+determine if its system performance requirements are met. The benchmarks shall
+be executed under different environment conditions, e.g. varying cache states
+(dirty, empty, valid) and system bus load generated by other processors. The
+application designer shall have the ability to add additional environment
+conditions, e.g. system bus load by DMA engines or different system bus
+arbitration schemes.
+
+To catch resource and performance regressions via test suite runs there shall be
+a means to specify threshold values for the measured quantities. The threshold
+values should be provided for each validation platform. How this can be done
+and if the threshold values are maintained by the RTEMS Project is subject to
+discussion.
diff --git a/eng/req/traceability.rst b/eng/req/traceability.rst
index 012c3db..9376a5f 100644
--- a/eng/req/traceability.rst
+++ b/eng/req/traceability.rst
@@ -57,20 +57,21 @@ Traceability between Software Requirements, Architecture and Design
-------------------------------------------------------------------
The software requirements are implemented in custom YAML files, see
-:ref:`ReqEngSpecItems`. The software architecture and design is written in
-Doxygen markup. Doxygen markup is used throughout all header and source files.
-A Doxygen filter program may be provided to place Doxygen markup in assembler
-files. The software architecture is documented via Doxygen groups. Each
-Doxygen group name should have a project-specific name and the name should be
-unique within the project, e.g. RTEMSTopLevel\ MidLevel\ LowLevel. The link
-from a Doxygen group to its parent group is realized through the ``@ingroup``
-special command. The link from a Doxygen group or :term:`software component`
-to the corresponding requirement is realized through a ``@satisfy{req}``
-`custom command <http://www.doxygen.nl/manual/custcmd.html>`_ which needs the
-identifier of the requirement as its one and only parameter. Only links to
-parents are explicitly given in the Doxygen markup. The links from a parent to
-its children are only implicitly specified via the link from a child to its
-parent. So, a tool must process all files to get the complete hierarchy of
-software requirements, architecture and design. Links from a software component
-to another software component are realized through automatic Doxygen references
-or the ``@ref`` and ``@see`` special commands.
+:ref:`ReqEngSpecificationItems`. The software architecture and design is
+written in Doxygen markup. Doxygen markup is used throughout all header and
+source files. A Doxygen filter program may be provided to place Doxygen markup
+in assembler files. The software architecture is documented via Doxygen
+groups. Each Doxygen group name should have a project-specific name and the
+name should be unique within the project, e.g. RTEMSTopLevel\ MidLevel\
+LowLevel. The link from a Doxygen group to its parent group is realized
+through the ``@ingroup`` special command. The link from a Doxygen group or
+:term:`software component` to the corresponding requirement is realized through
+a ``@satisfy{req}`` `custom command
+<http://www.doxygen.nl/manual/custcmd.html>`_ which needs the identifier of the
+requirement as its one and only parameter. Only links to parents are
+explicitly given in the Doxygen markup. The links from a parent to its
+children are only implicitly specified via the link from a child to its parent.
+So, a tool must process all files to get the complete hierarchy of software
+requirements, architecture and design. Links from a software component to
+another software component are realized through automatic Doxygen references or
+the ``@ref`` and ``@see`` special commands.
diff --git a/eng/req/validation.rst b/eng/req/validation.rst
deleted file mode 100644
index b4d4286..0000000
--- a/eng/req/validation.rst
+++ /dev/null
@@ -1,46 +0,0 @@
-.. SPDX-License-Identifier: CC-BY-SA-4.0
-
-.. Copyright (C) 2019, 2020 embedded brains GmbH (http://www.embedded-brains.de)
-
-.. _ReqEngValidation:
-
-Requirement Validation
-======================
-
-The validation of each requirement shall be accomplished by one or more of
-the following methods and nothing else:
-
-* *By test*: A :ref:`ReqEngTestCase` specification item is provided to
- demonstrate that the requirement is satisfied when the software product is
- executed on the target platform.
-
-* *By analysis*: A statement is provided how the requirement is met, by
- analysing static properties of the software product.
-
-* *By inspection*: A statement is provided how the requirement is met, by
- inspection of the :term:`source code`.
-
-* *By review of design*: A rationale is provided to demonstrate how the
- qualification requirement is satisfied implicitly by the software design.
-
-Validation by test is strongly recommended. The choice of any other validation
-method shall be strongly justified. The requirements author is obligated to
-provide the means to validate the requirement with detailed instructions.
-
-For a specification item in a parent directory it could be checked that at
-least one item in a subdirectory has a link to it. For example a subdirectory
-could contain validation items. With this feature you could check that all
-requirements are covered by at least one validation item.
-
-The requirement validation by analysis, by inspection, and by design
-specification items shall have the following attribute specializations:
-
-type
- The type attribute value shall be *validation-by-analysis*,
- *validation-by-inspection*, or *validation-by-review-of-design*.
-
-link
- There shall be exactly one link to the validated requirement.
-
-text
- The statement or rational of the requirement validation.
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