====== P3-REQ-17-3-004 ======

[[dido:99_annexes:annex-d-requirements:part-03:start| Return to Requirements]]

===== Statement =====

Each FX logical Node SHALL preserve traceability to the Node from Part 1.

===== Source =====

Part 3, Section 17.3: FX Logical Node Requirements.

===== Rationale =====

Preserving traceability to the Part 1 Conceptual Architecture ensures that every FX logical Node can be related back to its originating architectural concept. This enables governance, architectural review, impact assessment, and evidence generation throughout the lifecycle of the architecture.

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

This requirement applies to every FX logical Node defined by the FX Demo Logical Profile.

It applies specifically to:

  * traceability mapping;
  * architectural governance;
  * conformance reviews; and
  * architectural maintenance.

===== Verification =====

Verification SHALL confirm that each FX logical Node includes traceability to its originating conceptual Node.

Verification activities should include review checks confirming that:

  * traceability links are documented;
  * Part 1 conceptual Nodes are identified;
  * traceability remains complete; and
  * traceability is maintained throughout architectural updates.

===== Traceability =====

This requirement supports end-to-end traceability from the Part 1 Conceptual Architecture through the Part 2 Logical Architecture to the FX Demo Logical Profile.

Related requirement identifiers:

  * [[dido:99_annexes:annex-d-requirements:part-03:p3-req-17-3-003]]
  * [[dido:99_annexes:annex-d-requirements:part-03:p3-req-17-3-005]]

Related source section:

  * [[fxdemo:03-part:17-fx-demo-logical-requirements:17-3-fx-logical-node-requirements:start]]

===== Status =====

Draft

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