====== P4-REQ-21-5-001 ======

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

===== Statement =====

The Phase 0 Implementation Profile / PSM SHALL map selected FX logical Communication Endpoints to DDS Topics.

===== Source =====

Part 4, Section 21.5: Communication Endpoint Mapping Requirements.

===== Rationale =====

Mapping FX logical Communication Endpoints to DDS Topics establishes the Phase 0 communication realization of the logical exchanges defined by the FX Demo Logical Profile.

Explicit mappings preserve the distinction between logical communication meaning and the selected DDS implementation mechanism.

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

This requirement applies to:

  * selected FX logical Communication Endpoints;
  * DDS Topics;
  * Phase 0 communication mappings; and
  * implementation traceability records.

===== Verification =====

Verification SHALL confirm that selected FX logical Communication Endpoints are mapped to Phase 0 DDS Topics.

Verification activities should include review checks confirming that:

  * each selected endpoint has an identified DDS Topic mapping;
  * DDS Topic mappings identify their logical source;
  * mappings are documented and reviewable; and
  * unmapped DDS Topics do not introduce ungoverned logical exchanges.

===== Traceability =====

This requirement establishes forward traceability from Part 3 FX logical Communication Endpoints to their Phase 0 DDS Topic realizations.

Related requirement identifiers:

  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-5-002]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-5-003]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-5-010]]

Related source section:

  * [[fxdemo:04-part:21-phase-0-implementation-requirements:21-5-communication-endpoint-mapping-requirements:start]]

===== Status =====

Draft

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