P4-REQ-21-9-001

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The Phase 0 Implementation Profile / PSM SHALL define a Phase 0 QoS Profile Model.

Part 4, Section 21.9: QoS Profile Requirements.

A defined QoS Profile Model establishes the controlled communication behavior used by the selected Phase 0 DDS implementation.

The model makes communication characteristics explicit and allows QoS selections to remain aligned with DDS Topic mappings, Runtime Plane purposes, and the Phase 0 implementation baseline.

This requirement applies to:

• Phase 0 QoS profiles;
• DDS Topic mappings;
• Runtime Plane mappings;
• publisher and subscriber configuration; and
• communication compatibility review.

Verification SHALL confirm that the Phase 0 Implementation Profile / PSM defines a Phase 0 QoS Profile Model.

Verification activities should include review checks confirming that:

• applicable QoS profile families are identified;
• QoS mappings identify their communication purpose;
• applicable DDS Topic relationships are defined; and
• QoS configuration is governed by the Phase 0 implementation baseline.

This requirement establishes the Phase 0 communication behavior model used by the remaining QoS requirements.

Related requirement identifiers:

• P4-REQ-21-9-002
• P4-REQ-21-9-003
• P4-REQ-21-9-012
• P4-REQ-21-9-013

Related source section:

• 21.9 QoS Profile Requirements

Draft