P4-REQ-21-13-008

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Implementation governance SHALL define Developer Handbook governance.

Part 4, Section 21.13: Implementation Governance Requirements.

The Developer Handbook controls contributor practice and therefore requires governance over its approval, revision, application, and review.

Handbook governance ensures that changes to coding rules, file-header conventions, logging, exception handling, traceability, script usage, repository workflow, or review checklists remain aligned with the Phase 0 Implementation Profile / PSM.

This requirement applies to:

• the Phase 0 Developer Handbook;
• handbook revisions;
• handbook approval;
• handbook review; and
• application of handbook rules to implementation artifacts.

Verification SHALL confirm that implementation governance defines Developer Handbook governance.

Verification activities should include review checks confirming that:

• handbook approval is controlled;
• handbook changes require review;
• handbook revisions are identifiable;
• changes are evaluated against Part 4 requirements; and
• contributors apply only approved handbook rules to baseline artifacts.

This requirement establishes governance for the Developer Handbook as a subordinate implementation-discipline artifact.

Related requirement identifiers:

• P4-REQ-21-13-001
• P4-REQ-21-11-001
• P4-REQ-21-11-013

Related source section:

• 21.13 Implementation Governance Requirements

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