====== P4-REQ-21-12-002 ======

[[dido:99_annexes:annex-d-requirements:part-04:start| Return to Requirements]]

===== Statement =====

Each approved script SHALL identify its purpose.

===== Source =====

Part 4, Section 21.12: Script and Execution Requirements.

===== Rationale =====

A script must have an explicit purpose so contributors and reviewers can understand why it exists and which Phase 0 implementation activity it supports.

Purpose identification prevents ungoverned automation from entering the implementation baseline and helps distinguish approved scripts from exploratory or local scripts.

===== Applies To =====

This requirement applies to:

  * approved Phase 0 scripts;
  * script headers;
  * script documentation; and
  * script review records.

===== Verification =====

Verification SHALL confirm that each approved Phase 0 script identifies its purpose.

Verification activities should include review checks confirming that:

  * the script purpose is stated;
  * the purpose corresponds to an approved Phase 0 activity;
  * the purpose is consistent with repository workflow; and
  * the script does not perform undocumented baseline-affecting activity.

===== Traceability =====

This requirement establishes the purpose relationship between an approved script and the Phase 0 implementation activity it supports.

Related requirement identifiers:

  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-12-001]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-12-003]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-12-008]]

Related source section:

  * [[fxdemo:04-part:21-phase-0-implementation-requirements:21-12-script-and-execution-requirements:start]]

===== Status =====

Draft

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