spec: Replace "must" with "shall"

67 files changed, 94 insertions, 94 deletions

diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLDISABLEFILESYSTEM.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLDISABLEFILESYSTEM.yml
index c36191fb..62ff60e0 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLDISABLEFILESYSTEM.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLDISABLEFILESYSTEM.yml
@@ -11,7 +11,7 @@ appl-config-option-description: |
   configured.
 appl-config-option-index: []
 appl-config-option-notes: |
-  Filesystems must be initialized to support file descriptor based device
+  Filesystems shall be initialized to support file descriptor based device
   drivers and basic input/output functions such as :c:func:`printf`.
   Filesystems can be disabled to reduce the memory footprint of an application.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLDOESNOTNEEDCLOCKDRIVER.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLDOESNOTNEEDCLOCKDRIVER.yml
index a610cfcc..99f7d985 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLDOESNOTNEEDCLOCKDRIVER.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLDOESNOTNEEDCLOCKDRIVER.yml
@@ -14,7 +14,7 @@ appl-config-option-notes: |
   of using the Hello World example as the baseline for an application and
   leaving out a clock tick source.
 
-  The application must define exactly one of the following configuration options
+  The application shall define exactly one of the following configuration options
 
   * :ref:`CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER`,
 
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLEXTRADRIVERS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLEXTRADRIVERS.yml
index 85df8c60..55dd2798 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLEXTRADRIVERS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLEXTRADRIVERS.yml
@@ -17,7 +17,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a list of initializers for
+    The value of this configuration option shall be a list of initializers for
     structures of type :c:type:`rtems_driver_address_table`.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLNEEDSCLOCKDRIVER.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLNEEDSCLOCKDRIVER.yml
index 1c79da52..1d632495 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLNEEDSCLOCKDRIVER.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLNEEDSCLOCKDRIVER.yml
@@ -10,7 +10,7 @@ appl-config-option-notes: |
   The Clock Driver is responsible for providing a regular interrupt
   which invokes a clock tick directive.
 
-  The application must define exactly one of the following configuration options
+  The application shall define exactly one of the following configuration options
 
   * `CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER`,
 
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLNEEDSTIMERDRIVER.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLNEEDSTIMERDRIVER.yml
index 957ea2f7..76a8175d 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLNEEDSTIMERDRIVER.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLNEEDSTIMERDRIVER.yml
@@ -10,7 +10,7 @@ appl-config-option-notes: |
   The Benchmark Timer Driver is intended for the benchmark tests of the RTEMS
   Testsuite.  Applications should not use this driver.
 
-  The application must define exactly one of the following configuration options
+  The application shall define exactly one of the following configuration options
 
   * :ref:`CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER`,
 
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLPREREQUISITEDRIVERS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLPREREQUISITEDRIVERS.yml
index e3f118ad..dd3848b0 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-APPLPREREQUISITEDRIVERS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-APPLPREREQUISITEDRIVERS.yml
@@ -18,7 +18,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a list of initializers for
+    The value of this configuration option shall be a list of initializers for
     structures of type :c:type:`rtems_driver_address_table`.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFBUFFERMAXSIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFBUFFERMAXSIZE.yml
index a23ef826..e4de34e9 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFBUFFERMAXSIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFBUFFERMAXSIZE.yml
@@ -12,7 +12,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   min: 0
   custom:
-  - It must be an integral multiple of :ref:`CONFIGURE_BDBUF_BUFFER_MIN_SIZE`.
+  - It shall be an integral multiple of :ref:`CONFIGURE_BDBUF_BUFFER_MIN_SIZE`.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
 derived: false
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFREADAHEADTASKPRIORITY.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFREADAHEADTASKPRIORITY.yml
index cc6cb959..8cf8401a 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFREADAHEADTASKPRIORITY.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFREADAHEADTASKPRIORITY.yml
@@ -11,7 +11,7 @@ appl-config-option-name: CONFIGURE_BDBUF_READ_AHEAD_TASK_PRIORITY
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a valid task priority of the
+    The value of this configuration option shall be a valid task priority of the
     configured scheduler.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFTASKSTACKSIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFTASKSTACKSIZE.yml
index 5f2afeae..a675975a 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFTASKSTACKSIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-BDBUFTASKSTACKSIZE.yml
@@ -14,10 +14,10 @@ appl-config-option-constraint:
   max: '``SIZE_MAX``'
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
-    It must be small enough so that the task stack space calculation carried
+    It shall be small enough so that the task stack space calculation carried
     out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``uintptr_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-BSPIDLETASKBODY.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-BSPIDLETASKBODY.yml
index 40b700ff..f19eb7aa 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-BSPIDLETASKBODY.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-BSPIDLETASKBODY.yml
@@ -21,7 +21,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be defined to a valid function
+    The value of this configuration option shall be defined to a valid function
     pointer of the type ``void *( *idle_body )( uintptr_t )``.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-BSPIDLETASKSTACKSIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-BSPIDLETASKSTACKSIZE.yml
index f9d8e0f7..2d1b5672 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-BSPIDLETASKSTACKSIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-BSPIDLETASKSTACKSIZE.yml
@@ -19,10 +19,10 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    It must be greater than or equal to a BSP-specific and application-specific
+    It shall be greater than or equal to a BSP-specific and application-specific
     minimum value.
   - |
-    It must be small enough so that the IDLE task stack area calculation
+    It shall be small enough so that the IDLE task stack area calculation
     carried out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``size_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-BSPINITIALEXTENSION.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-BSPINITIALEXTENSION.yml
index 1202ab23..016aa319 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-BSPINITIALEXTENSION.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-BSPINITIALEXTENSION.yml
@@ -20,7 +20,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a list of initializers for
+    The value of this configuration option shall be a list of initializers for
     structures of type :c:type:`rtems_extensions_table`.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-BSPINTERRUPTSTACKSIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-BSPINTERRUPTSTACKSIZE.yml
index 14947b84..7826e515 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-BSPINTERRUPTSTACKSIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-BSPINTERRUPTSTACKSIZE.yml
@@ -19,10 +19,10 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    It must be greater than or equal to a BSP-specific and application-specific
+    It shall be greater than or equal to a BSP-specific and application-specific
     minimum value.
   - |
-    It must be small enough so that the interrupt stack area calculation
+    It shall be small enough so that the interrupt stack area calculation
     carried out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``size_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-BSPPREREQUISITEDRIVERS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-BSPPREREQUISITEDRIVERS.yml
index ac53affd..124f0848 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-BSPPREREQUISITEDRIVERS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-BSPPREREQUISITEDRIVERS.yml
@@ -21,7 +21,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a list of initializers for
+    The value of this configuration option shall be a list of initializers for
     structures of type :c:type:`rtems_extensions_table`.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-EXTRATASKSTACKS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-EXTRATASKSTACKS.yml
index f8619991..1f00f5e9 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-EXTRATASKSTACKS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-EXTRATASKSTACKS.yml
@@ -17,7 +17,7 @@ appl-config-option-constraint:
   min: 0
   custom:
   - |
-    It must be small enough so that the task stack space calculation carried
+    It shall be small enough so that the task stack space calculation carried
     out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``uintptr_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKBODY.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKBODY.yml
index 4ceca122..a4f9f327 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKBODY.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKBODY.yml
@@ -9,7 +9,7 @@ appl-config-option-description: |
 appl-config-option-index: []
 appl-config-option-name: CONFIGURE_IDLE_TASK_BODY
 appl-config-option-notes: |
-  IDLE threads must not block.  A blocking IDLE thread results in undefined
+  IDLE threads shall not block.  A blocking IDLE thread results in undefined
   system behaviour because the scheduler assume that at least one ready thread
   exists.
 
@@ -18,7 +18,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be defined to a valid function
+    The value of this configuration option shall be defined to a valid function
     pointer of the type ``void *( *idle_body )( uintptr_t )``.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKINITAPPL.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKINITAPPL.yml
index 4661d336..e5290502 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKINITAPPL.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKINITAPPL.yml
@@ -14,16 +14,16 @@ appl-config-option-name: CONFIGURE_IDLE_TASK_INITIALIZES_APPLICATION
 appl-config-option-notes: |
   If you use this option be careful, the user IDLE task **cannot** block at all
   during the initialization sequence.  Further, once application
-  initialization is complete, it must make itself preemptible and enter an idle
+  initialization is complete, it shall make itself preemptible and enter an idle
   body loop.
 
-  The IDLE task must run at the lowest priority of all tasks in the system.
+  The IDLE task shall run at the lowest priority of all tasks in the system.
 
   If this configuration option is defined, then it is mandatory to configure a
   user IDLE task with the :ref:`CONFIGURE_IDLE_TASK_BODY` configuration option,
   otherwise a compile time error in the configuration file will occur.
 
-  The application must define exactly one of the following configuration
+  The application shall define exactly one of the following configuration
   options
 
   * :ref:`CONFIGURE_RTEMS_INIT_TASKS_TABLE`,
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKSTACKSIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKSTACKSIZE.yml
index f08114e7..ab483664 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKSTACKSIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-IDLETASKSTACKSIZE.yml
@@ -13,10 +13,10 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    It must be greater than or equal to a BSP-specific and application-specific
+    It shall be greater than or equal to a BSP-specific and application-specific
     minimum value.
   - |
-    It must be small enough so that the IDLE task stack area calculation
+    It shall be small enough so that the IDLE task stack area calculation
     carried out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``size_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-INITIALEXTENSIONS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-INITIALEXTENSIONS.yml
index 5268cd7f..4bab7868 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-INITIALEXTENSIONS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-INITIALEXTENSIONS.yml
@@ -15,7 +15,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a list of initializers for
+    The value of this configuration option shall be a list of initializers for
     structures of type :c:type:`rtems_extensions_table`.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKARGUMENTS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKARGUMENTS.yml
index ecab24e4..a3c4b862 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKARGUMENTS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKARGUMENTS.yml
@@ -14,7 +14,7 @@ appl-config-option-range: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a valid integer of type
+    The value of this configuration option shall be a valid integer of type
     ``rtems_task_argument``.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKATTRIBUTES.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKATTRIBUTES.yml
index 249e78f6..2aa8b694 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKATTRIBUTES.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKATTRIBUTES.yml
@@ -12,7 +12,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a valid task attribute set.
+    The value of this configuration option shall be a valid task attribute set.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
 derived: false
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKENTRYPOINT.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKENTRYPOINT.yml
index 4b434ba4..af9456c2 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKENTRYPOINT.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKENTRYPOINT.yml
@@ -9,11 +9,11 @@ appl-config-option-description: |
 appl-config-option-index: []
 appl-config-option-name: CONFIGURE_INIT_TASK_ENTRY_POINT
 appl-config-option-notes: |
-  The user must implement the function referenced by this configuration option.
+  The user shall implement the function referenced by this configuration option.
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be defined to a valid function
+    The value of this configuration option shall be defined to a valid function
     pointer of the type ``void ( *entry_point )( rtems_task_argument )``.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKINITIALMODES.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKINITIALMODES.yml
index f3a43ba8..ebc5f0b8 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKINITIALMODES.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKINITIALMODES.yml
@@ -14,7 +14,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a valid task mode set.
+    The value of this configuration option shall be a valid task mode set.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
 derived: false
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKNAME.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKNAME.yml
index 96edc68f..f33d9a00 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKNAME.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKNAME.yml
@@ -13,7 +13,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a valid integer of type
+    The value of this configuration option shall be a valid integer of type
     ``rtems_name``.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKPRIORITY.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKPRIORITY.yml
index e001a673..9f0e75c7 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKPRIORITY.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKPRIORITY.yml
@@ -12,7 +12,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a valid task priority.  The
+    The value of this configuration option shall be a valid task priority.  The
     set of valid task priorities is scheduler-specific.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKSTACKSIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKSTACKSIZE.yml
index 4e06c887..aa6fdcdf 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKSTACKSIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-INITTASKSTACKSIZE.yml
@@ -13,7 +13,7 @@ appl-config-option-constraint:
   min: ':ref:`CONFIGURE_MINIMUM_TASK_STACK_SIZE`'
   custom:
   - |
-    It must be small enough so that the task stack space calculation carried
+    It shall be small enough so that the task stack space calculation carried
     out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``uintptr_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-INTERRUPTSTACKSIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-INTERRUPTSTACKSIZE.yml
index 9b0d269c..e2ba3438 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-INTERRUPTSTACKSIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-INTERRUPTSTACKSIZE.yml
@@ -11,7 +11,7 @@ appl-config-option-index:
 - interrupt stack size
 appl-config-option-name: CONFIGURE_INTERRUPT_STACK_SIZE
 appl-config-option-notes: |
-  The interrupt stack size must be aligned according to
+  The interrupt stack size shall be aligned according to
   ``CPU_INTERRUPT_STACK_ALIGNMENT``.
 
   There is one interrupt stack available for each configured processor
@@ -32,10 +32,10 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    It must be greater than or equal to a BSP-specific and application-specific
+    It shall be greater than or equal to a BSP-specific and application-specific
     minimum value.
   - |
-    It must be small enough so that the interrupt stack area calculation
+    It shall be small enough so that the interrupt stack area calculation
     carried out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``size_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXBARRIERS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXBARRIERS.yml
index a2f8083a..10d5d4a0 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXBARRIERS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXBARRIERS.yml
@@ -15,7 +15,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXDRIVERS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXDRIVERS.yml
index 20ee436c..94774dbf 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXDRIVERS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXDRIVERS.yml
@@ -11,7 +11,7 @@ appl-config-option-index: []
 appl-config-option-name: CONFIGURE_MAXIMUM_DRIVERS
 appl-config-option-notes: |
   If the application will dynamically install device drivers, then this
-  configuration parameter must be larger than the number of statically
+  configuration parameter shall be larger than the number of statically
   configured device drivers. Drivers configured using the
   ``CONFIGURE_APPLICATIONS_NEEDS_XXX_DRIVER`` configuration options are
   statically installed.
@@ -19,10 +19,10 @@ appl-config-option-constraint:
   max: '``SIZE_MAX``'
   custom:
   - |
-    It must be greater than or equal than the number of statically configured
+    It shall be greater than or equal than the number of statically configured
     device drivers.
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXFILEDESCRIPTORS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXFILEDESCRIPTORS.yml
index 94b504e4..3be38f35 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXFILEDESCRIPTORS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXFILEDESCRIPTORS.yml
@@ -16,7 +16,7 @@ appl-config-option-constraint:
   max: '``SIZE_MAX``'
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXMESSAGEQUEUES.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXMESSAGEQUEUES.yml
index bce9b2c4..cbecab7a 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXMESSAGEQUEUES.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXMESSAGEQUEUES.yml
@@ -17,7 +17,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPARTITIONS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPARTITIONS.yml
index 651bc49d..bad5f776 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPARTITIONS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPARTITIONS.yml
@@ -15,7 +15,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPERIODS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPERIODS.yml
index 59b1c8d8..bb2702a4 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPERIODS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPERIODS.yml
@@ -15,7 +15,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPORTS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPORTS.yml
index e8033e7f..6db09347 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPORTS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPORTS.yml
@@ -15,7 +15,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXKEYS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXKEYS.yml
index e275fc66..8f86e3b1 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXKEYS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXKEYS.yml
@@ -15,7 +15,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXKEYVALUEPAIRS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXKEYVALUEPAIRS.yml
index 1ea9ad4a..96932604 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXKEYVALUEPAIRS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXKEYVALUEPAIRS.yml
@@ -22,7 +22,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXMESSAGEQUEUES.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXMESSAGEQUEUES.yml
index 10c0652f..18545ecd 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXMESSAGEQUEUES.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXMESSAGEQUEUES.yml
@@ -17,7 +17,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXQUEUEDSIGNALS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXQUEUEDSIGNALS.yml
index fafb8712..c9e06073 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXQUEUEDSIGNALS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXQUEUEDSIGNALS.yml
@@ -17,7 +17,7 @@ appl-config-option-constraint:
   max: '``SIZE_MAX``'
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXSEMAPHORES.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXSEMAPHORES.yml
index 464fe86f..6e8ddbb5 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXSEMAPHORES.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXSEMAPHORES.yml
@@ -19,7 +19,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXTHREADS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXTHREADS.yml
index 50076cda..08c886bc 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXTHREADS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXTHREADS.yml
@@ -28,10 +28,10 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
-    It must be small enough so that the task stack space calculation carried
+    It shall be small enough so that the task stack space calculation carried
     out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``uintptr_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXTIMERS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXTIMERS.yml
index aef189e4..82e0ddbe 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXTIMERS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPOSIXTIMERS.yml
@@ -18,7 +18,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPRIORITY.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPRIORITY.yml
index 3e8d2728..72ef5cd1 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPRIORITY.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXPRIORITY.yml
@@ -38,7 +38,7 @@ appl-config-option-notes: |
   priority levels (default), 48 bytes for 4 priority levels
   (``CONFIGURE_MAXIMUM_PRIORITY == 3``).
 
-  The default value is 255, because RTEMS must support 256 priority levels to
+  The default value is 255, because RTEMS shall support 256 priority levels to
   be compliant with various standards.  These priorities range from 0 to 255.
 appl-config-option-constraint:
   set:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXREGIONS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXREGIONS.yml
index 0a744693..d1634ec7 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXREGIONS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXREGIONS.yml
@@ -15,7 +15,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXSEMAPHORES.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXSEMAPHORES.yml
index 531453f1..85f2066b 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXSEMAPHORES.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXSEMAPHORES.yml
@@ -19,7 +19,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTASKS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTASKS.yml
index 448c5696..2277c693 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTASKS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTASKS.yml
@@ -31,10 +31,10 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
-    It must be small enough so that the task stack space calculation carried
+    It shall be small enough so that the task stack space calculation carried
     out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``uintptr_t``.
   - |
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTHREADNAMESIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTHREADNAMESIZE.yml
index 1249acd5..0dd44dfa 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTHREADNAMESIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTHREADNAMESIZE.yml
@@ -21,7 +21,7 @@ appl-config-option-constraint:
   max: '``SIZE_MAX``'
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTIMERS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTIMERS.yml
index 0ef09705..18d65fa7 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTIMERS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXTIMERS.yml
@@ -15,7 +15,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
   - |
     The value may be defined through :c:func:`rtems_resource_unlimited` the
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXUSEREXTENSIONS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXUSEREXTENSIONS.yml
index 0dc20374..1d8eafaf 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MAXUSEREXTENSIONS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MAXUSEREXTENSIONS.yml
@@ -14,7 +14,7 @@ appl-config-option-constraint:
   max: 65535
   custom:
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MEMORYOVERHEAD.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MEMORYOVERHEAD.yml
index 6783dc17..e612dba5 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MEMORYOVERHEAD.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MEMORYOVERHEAD.yml
@@ -18,7 +18,7 @@ appl-config-option-constraint:
   min: 0
   custom:
   - |
-    It must be small enough so that the RTEMS Workspace size calculation
+    It shall be small enough so that the RTEMS Workspace size calculation
     carried out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``uintptr_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MESSAGEBUFFERMEMORY.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MESSAGEBUFFERMEMORY.yml
index 596378e8..83f95ddf 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MESSAGEBUFFERMEMORY.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MESSAGEBUFFERMEMORY.yml
@@ -60,7 +60,7 @@ appl-config-option-constraint:
   min: 0
   custom:
   - |
-    It must be small enough so that the RTEMS Workspace size calculation
+    It shall be small enough so that the RTEMS Workspace size calculation
     carried out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``uintptr_t``.
 appl-config-option-range: |
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MICROSECONDSPERTICK.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MICROSECONDSPERTICK.yml
index 33cc1bdc..10455ec8 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MICROSECONDSPERTICK.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MICROSECONDSPERTICK.yml
@@ -32,8 +32,8 @@ appl-config-option-notes: |
   of a clock tick quantum.
 appl-config-option-constraint:
   custom:
-  - It must be greater than or equal to a Clock Driver specific value.
-  - It must be less than or equal to a Clock Driver specific value.
+  - It shall be greater than or equal to a Clock Driver specific value.
+  - It shall be less than or equal to a Clock Driver specific value.
   - The resulting clock ticks per second should be an integer.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MINPOSIXTHREADSTACKSIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MINPOSIXTHREADSTACKSIZE.yml
index 7d174a94..aa3e2a77 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MINPOSIXTHREADSTACKSIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MINPOSIXTHREADSTACKSIZE.yml
@@ -16,7 +16,7 @@ appl-config-option-constraint:
   min: 0
   custom:
   - |
-    It must be small enough so that the task stack space calculation carried
+    It shall be small enough so that the task stack space calculation carried
     out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``uintptr_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MINTASKSTACKSIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MINTASKSTACKSIZE.yml
index 762af8ab..35693e11 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MINTASKSTACKSIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MINTASKSTACKSIZE.yml
@@ -15,7 +15,7 @@ appl-config-option-notes: |
 
   This parameter can be used to lower the minimum from that recommended. This
   can be used in low memory systems to reduce memory consumption for
-  stacks. However, this must be done with caution as it could increase the
+  stacks. However, this shall be done with caution as it could increase the
   possibility of a blown task stack.
 
   This parameter can be used to increase the minimum from that
@@ -32,10 +32,10 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    It must be greater than or equal to a BSP-specific and application-specific
+    It shall be greater than or equal to a BSP-specific and application-specific
     minimum value.
   - |
-    It must be small enough so that the task stack space calculation carried
+    It shall be small enough so that the task stack space calculation carried
     out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``uintptr_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-MPMPCITABLEPOINTER.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-MPMPCITABLEPOINTER.yml
index 1900d536..4f9ffbff 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-MPMPCITABLEPOINTER.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-MPMPCITABLEPOINTER.yml
@@ -14,7 +14,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a pointer to
+    The value of this configuration option shall be a pointer to
     :c:type:`rtems_mpci_table`.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADENTRYPOINT.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADENTRYPOINT.yml
index aa602c0f..535f64b2 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADENTRYPOINT.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADENTRYPOINT.yml
@@ -8,11 +8,11 @@ appl-config-option-description: |
 appl-config-option-index: []
 appl-config-option-name: CONFIGURE_POSIX_INIT_THREAD_ENTRY_POINT
 appl-config-option-notes: |
-  The user must implement the function referenced by this configuration option.
+  The user shall implement the function referenced by this configuration option.
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be defined to a valid function
+    The value of this configuration option shall be defined to a valid function
     pointer of the type ``void *( *entry_point )( void * )``.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADSTACKSIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADSTACKSIZE.yml
index 6cf8424d..d81e8949 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADSTACKSIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADSTACKSIZE.yml
@@ -13,7 +13,7 @@ appl-config-option-constraint:
   min: ':ref:`CONFIGURE_MINIMUM_TASK_STACK_SIZE`'
   custom:
   - |
-    It must be small enough so that the task stack space calculation carried
+    It shall be small enough so that the task stack space calculation carried
     out by ``<rtems/confdefs.h>`` does not overflow an integer of type
     ``uintptr_t``.
 copyrights:
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADTABLE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADTABLE.yml
index aa85c268..1cd46976 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADTABLE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-POSIXINITTHREADTABLE.yml
@@ -7,7 +7,7 @@ appl-config-option-description: |
 appl-config-option-index: []
 appl-config-option-name: CONFIGURE_POSIX_INIT_THREAD_TABLE
 appl-config-option-notes: |
-  The application must define exactly one of the following configuration
+  The application shall define exactly one of the following configuration
   options
 
   * :ref:`CONFIGURE_RTEMS_INIT_TASKS_TABLE`,
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-RECORDPERPROCESSORITEMS.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-RECORDPERPROCESSORITEMS.yml
index 867ddead..e3749cc6 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-RECORDPERPROCESSORITEMS.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-RECORDPERPROCESSORITEMS.yml
@@ -15,9 +15,9 @@ appl-config-option-constraint:
   min: 16
   max: '``SIZE_MAX``'
   custom:
-  - It must be a power of two.
+  - It shall be a power of two.
   - |
-    It must be less than or equal to a BSP-specific value which depends on the
+    It shall be less than or equal to a BSP-specific value which depends on the
     memory size of the platform available to the application.
 copyrights:
 - Copyright (C) 2019 embedded brains GmbH (http://www.embedded-brains.de)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-RTEMSINITTASKSTABLE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-RTEMSINITTASKSTABLE.yml
index fdc7a4d0..b4346e80 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-RTEMSINITTASKSTABLE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-RTEMSINITTASKSTABLE.yml
@@ -7,7 +7,7 @@ appl-config-option-description: |
 appl-config-option-index: []
 appl-config-option-name: CONFIGURE_RTEMS_INIT_TASKS_TABLE
 appl-config-option-notes: |
-  The application must define exactly one of the following configuration
+  The application shall define exactly one of the following configuration
   options
 
   * `CONFIGURE_RTEMS_INIT_TASKS_TABLE`,
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-SCHEDULERNAME.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-SCHEDULERNAME.yml
index 2e72a75f..f2224331 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-SCHEDULERNAME.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-SCHEDULERNAME.yml
@@ -34,7 +34,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a valid integer of type
+    The value of this configuration option shall be a valid integer of type
     ``rtems_name``.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-SCHEDULERUSER.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-SCHEDULERUSER.yml
index 0da75a1f..23ae9574 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-SCHEDULERUSER.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-SCHEDULERUSER.yml
@@ -2,7 +2,7 @@ SPDX-License-Identifier: CC-BY-SA-4.0
 active: true
 appl-config-option-type: feature-enable
 appl-config-option-description: |
-  In case this configuration option is defined, then the user must provide a
+  In case this configuration option is defined, then the user shall provide a
   scheduler algorithm to the application.
 appl-config-option-index: []
 appl-config-option-name: CONFIGURE_SCHEDULER_USER
@@ -11,18 +11,18 @@ appl-config-option-notes: |
   Think twice before you use it.
 
   RTEMS allows the application to provide its own task/thread scheduling
-  algorithm. In order to do this, one must define
+  algorithm. In order to do this, one shall define
   ``CONFIGURE_SCHEDULER_USER`` to indicate the application provides its own
   scheduling algorithm. If ``CONFIGURE_SCHEDULER_USER`` is defined then the
-  following additional macros must be defined:
+  following additional macros shall be defined:
 
-  - ``CONFIGURE_SCHEDULER`` must be defined to a static definition of
+  - ``CONFIGURE_SCHEDULER`` shall be defined to a static definition of
     the scheduler data structures of the user scheduler.
 
-  - ``CONFIGURE_SCHEDULER_TABLE_ENTRIES`` must be defined to a scheduler
+  - ``CONFIGURE_SCHEDULER_TABLE_ENTRIES`` shall be defined to a scheduler
     table entry initializer for the user scheduler.
 
-  - ``CONFIGURE_SCHEDULER_USER_PER_THREAD`` must be defined to the type of
+  - ``CONFIGURE_SCHEDULER_USER_PER_THREAD`` shall be defined to the type of
     the per-thread information of the user scheduler.
 
   At this time, the mechanics and requirements for writing a new scheduler
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-SWAPOUTTASKPRIORITY.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-SWAPOUTTASKPRIORITY.yml
index 485f284c..e39615ec 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-SWAPOUTTASKPRIORITY.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-SWAPOUTTASKPRIORITY.yml
@@ -11,7 +11,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a valid Classic API task
+    The value of this configuration option shall be a valid Classic API task
     priority.  The set of valid task priorities is scheduler-specific.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-SWAPOUTWORKERTASKPRIORITY.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-SWAPOUTWORKERTASKPRIORITY.yml
index e643125e..e5f48f63 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-SWAPOUTWORKERTASKPRIORITY.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-SWAPOUTWORKERTASKPRIORITY.yml
@@ -12,7 +12,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be a valid Classic API task
+    The value of this configuration option shall be a valid Classic API task
     priority.  The set of valid task priorities is scheduler-specific.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKALLOCATOR.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKALLOCATOR.yml
index c6dcd5b4..b9c80bc3 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKALLOCATOR.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKALLOCATOR.yml
@@ -11,7 +11,7 @@ appl-config-option-index:
 - task stack allocator
 appl-config-option-name: CONFIGURE_TASK_STACK_ALLOCATOR
 appl-config-option-notes: |
-  A correctly configured system must configure the following to be consistent:
+  A correctly configured system shall configure the following to be consistent:
 
   - :ref:`CONFIGURE_TASK_STACK_ALLOCATOR_INIT`
 
@@ -21,7 +21,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be defined to a valid function
+    The value of this configuration option shall be defined to a valid function
     pointer of the type ``void *( *allocate )( size_t )``.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKALLOCATORINIT.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKALLOCATORINIT.yml
index fee5437c..cdf90e39 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKALLOCATORINIT.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKALLOCATORINIT.yml
@@ -8,7 +8,7 @@ appl-config-option-description: |
 appl-config-option-index: []
 appl-config-option-name: CONFIGURE_TASK_STACK_ALLOCATOR_INIT
 appl-config-option-notes: |
-  A correctly configured system must configure the following to be consistent:
+  A correctly configured system shall configure the following to be consistent:
 
   - `CONFIGURE_TASK_STACK_ALLOCATOR_INIT`
 
@@ -18,7 +18,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be defined to a valid function
+    The value of this configuration option shall be defined to a valid function
     pointer of the type ``void ( *initialize )( size_t )`` or to ``NULL``.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKDEALLOCATOR.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKDEALLOCATOR.yml
index ddf1bef7..c507ee82 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKDEALLOCATOR.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-TASKSTACKDEALLOCATOR.yml
@@ -11,7 +11,7 @@ appl-config-option-index:
 - task stack deallocator
 appl-config-option-name: CONFIGURE_TASK_STACK_DEALLOCATOR
 appl-config-option-notes: |
-  A correctly configured system must configure the following to be consistent:
+  A correctly configured system shall configure the following to be consistent:
 
   - :ref:`CONFIGURE_TASK_STACK_ALLOCATOR_INIT`
 
@@ -21,7 +21,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must be defined to a valid function
+    The value of this configuration option shall be defined to a valid function
     pointer of the type ``void ( *deallocate )( void * )``.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)
diff --git a/spec/acfg/opt/RTEMS-ACFG-OPT-UNLIMITEDALLOCATIONSIZE.yml b/spec/acfg/opt/RTEMS-ACFG-OPT-UNLIMITEDALLOCATIONSIZE.yml
index 9201e4e4..f4ee2a7a 100644
--- a/spec/acfg/opt/RTEMS-ACFG-OPT-UNLIMITEDALLOCATIONSIZE.yml
+++ b/spec/acfg/opt/RTEMS-ACFG-OPT-UNLIMITEDALLOCATIONSIZE.yml
@@ -18,7 +18,7 @@ appl-config-option-notes: |
 appl-config-option-constraint:
   custom:
   - |
-    The value of this configuration option must meet the constraints of all
+    The value of this configuration option shall meet the constraints of all
     object classes to which it is applied.
 copyrights:
 - Copyright (C) 1988, 2008 On-Line Applications Research Corporation (OAR)