P4-REQ-21-5-010

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Each DDS Topic mapping SHALL preserve traceability to the Part 3 FX logical Communication Endpoint.

Part 4, Section 21.5: Communication Endpoint Mapping Requirements.

Each DDS Topic is an implementation realization of a logical communication definition and must remain connected to that authoritative Part 3 source.

Preserving traceability prevents Topic names, data representations, QoS profiles, or runtime configuration from becoming disconnected implementation decisions.

This requirement applies to:

• DDS Topic mappings;
• FX logical Communication Endpoints;
• configuration metadata;
• mapping tables; and
• implementation traceability records.

Verification SHALL confirm that each DDS Topic mapping preserves traceability to its applicable Part 3 FX logical Communication Endpoint.

Verification activities should include review checks confirming that:

• the applicable endpoint is identifiable;
• mapping records connect the Topic to its logical source;
• changes preserve or explicitly update the traceability relationship; and
• reviewers can navigate from DDS Topic to Part 3 endpoint definition.

This requirement establishes backward traceability from Phase 0 DDS Topics to their authoritative Part 3 FX logical Communication Endpoints.

Related requirement identifiers:

• P4-REQ-21-5-001
• P4-REQ-21-5-002
• P4-REQ-21-5-009
• P4-REQ-21-5-011

Related source section:

• 21.5 Communication Endpoint Mapping Requirements

Draft