P2-REQ-16-4-005

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The Logical Architecture / PIM SHALL define logical communication through explicit Logical Communication Endpoints rather than hidden coupling, undocumented dependencies, or implicit control paths.

Part 2, Section 16.4: Logical Communication Requirements.

Explicit Logical Communication Endpoints make communication relationships visible, reviewable, and traceable. Avoiding hidden coupling and undocumented dependencies preserves architectural clarity and enables consistent governance, interoperability, and implementation mapping.

This requirement applies to the Logical Communication Model and all Logical Interaction Patterns.

It applies specifically to:

• Logical Communication Endpoints;
• Logical Nodes;
• Logical Interactions; and
• Domain Logical Profiles.

Verification SHALL confirm that logical communication is defined through explicit Logical Communication Endpoints.

Verification activities should include review checks confirming that:

• communication paths are explicitly identified;
• undocumented dependencies are absent;
• hidden coupling is avoided; and
• logical interactions occur through defined Logical Communication Endpoints.

This requirement supports traceability between Logical Communication Endpoints, Logical Nodes, and Logical Interaction Patterns.

Related requirement identifiers:

• P2-REQ-16-4-003
• P2-REQ-16-4-004
• P2-REQ-16-7-001

Related source section:

• 16.4 Logical Communication Requirements

Draft