====== P4-REQ-21-15-014 ======

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

===== Statement =====

Part 5 SHALL NOT redefine the Phase 0 implementation artifacts defined by Part 4.

===== Source =====

Part 4, Section 21.15: Part 5 Handoff Requirements.

===== Rationale =====

Part 5 deploys, tests, observes, operates, and evidences the Phase 0 implementation artifacts defined by Part 4. It does not become a second source of implementation-profile definitions.

Preventing Part 5 from redefining Part 4 artifacts preserves a clear authority boundary and ensures that implementation changes remain subject to Part 4 implementation governance.

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

This requirement applies to:

  * implementation node mappings;
  * DDS Topic mappings;
  * IDL and generated type mappings;
  * QoS profile mappings;
  * Runtime Plane realizations;
  * interaction realizations;
  * repository and script models; and
  * other Phase 0 implementation artifacts.

===== Verification =====

Verification SHALL confirm that Part 5 uses rather than redefines the Phase 0 implementation artifacts defined by Part 4.

Verification activities should include review checks confirming that:

  * implementation definitions remain governed by Part 4;
  * Part 5 deployment choices do not alter implementation mappings;
  * Part 5 tests and evidence do not create replacement implementation definitions;
  * implementation changes discovered during Part 5 activities return through Part 4 governance; and
  * Part 5 records preserve the applicable Part 4 baseline identity.

===== Traceability =====

This requirement preserves the authority boundary between Part 4 implementation definition and Part 5 deployment, testability, operation, observation, and evidence activities.

Related requirement identifiers:

  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-15-001]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-15-013]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-13-005]]

Related source section:

  * [[fxdemo:04-part:21-phase-0-implementation-requirements:21-15-part-5-handoff-requirements:start]]

===== Status =====

Draft

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