====== P4-REQ-21-10-010 ======

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

===== Statement =====

Repository layout SHALL NOT redefine the architecture.

===== Source =====

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

===== Rationale =====

Repository layout is an implementation organization mechanism. Directory structure, file placement, generated-code locations, and build-output locations do not define logical Nodes, Communication Endpoints, information structures, Runtime Planes, or interaction patterns.

This constraint preserves separation between architectural definition and repository organization.

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

This requirement applies to:

  * repository directories;
  * source and generated-code locations;
  * configuration and script locations;
  * documentation locations;
  * build-output locations; and
  * repository naming conventions.

===== Verification =====

Verification SHALL confirm that repository layout does not redefine architectural elements.

Verification activities should include review checks confirming that:

  * repository directories are treated as implementation organization;
  * logical architectural definitions remain governed by Parts 1, 2, and 3;
  * directory boundaries do not implicitly redefine Node or Runtime Plane boundaries;
  * file placement does not redefine Communication Endpoints or information structures; and
  * repository changes remain implementation-governance concerns.

===== Traceability =====

This requirement preserves the separation between the FX Demo architecture and the Phase 0 repository organization selected to support implementation work.

Related requirement identifiers:

  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-10-001]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-10-008]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-10-009]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-2-004]]

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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