P4-REQ-21-13-004

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Implementation governance SHALL define implementation compatibility.

Part 4, Section 21.13: Implementation Governance Requirements.

Phase 0 implementation artifacts must work together without loss of logical meaning, communication compatibility, generated-type compatibility, QoS compatibility, traceability, or reviewability.

Defined compatibility rules allow incompatible changes to be detected and reviewed before they enter the implementation baseline.

This requirement applies to:

• DDS Topic mappings;
• publishers and subscribers;
• IDL structures and generated types;
• QoS profiles;
• configuration artifacts; and
• implementation modules.

Verification SHALL confirm that implementation governance defines implementation compatibility.

Verification activities should include review checks confirming that:

• communication compatibility is addressed;
• data-representation compatibility is addressed;
• QoS compatibility is addressed;
• version relationships are considered; and
• incompatible artifacts require review before baseline acceptance.

This requirement establishes compatibility controls among related Phase 0 implementation artifacts.

Related requirement identifiers:

• P4-REQ-21-13-003
• P4-REQ-21-13-005
• P4-REQ-21-5-009
• P4-REQ-21-6-009

Related source section:

• 21.13 Implementation Governance Requirements

Draft