====== P4-REQ-21-10-006 ======

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

===== Statement =====

Each governed source file SHALL include the standard file header defined by the Developer Handbook.

===== Source =====

Part 4, Section 21.10: Repository and Build Artifact Requirements.

===== Rationale =====

The standard file header provides the metadata needed to understand a governed source artifact's purpose, ownership context, logical or implementation source, modification guidance, and traceability.

Requiring the header supports consistent review and prevents source files from entering the Phase 0 baseline without sufficient governance context.

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

This requirement applies to:

  * hand-authored source files;
  * applicable scripts;
  * governed configuration source files where required; and
  * other governed source artifacts covered by the Developer Handbook.

===== Verification =====

Verification SHALL confirm that each governed source file includes the required standard file header.

Verification activities should include review checks confirming that:

  * the file header is present;
  * required header fields are populated;
  * the artifact purpose is identified;
  * applicable traceability information is present; and
  * the header conforms to the Developer Handbook.

===== Traceability =====

This requirement connects governed Phase 0 source files to the file-header rules defined by the Developer Handbook.

Related requirement identifiers:

  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-10-005]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-10-007]]

Related source section:

  * [[fxdemo:04-part:21-phase-0-implementation-requirements:21-10-repository-and-build-artifact-requirements:start]]

===== Status =====

Draft

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