====== 15.6 Boundary Between Part 3 and Part 4 ====== [[fxdemo:03-part:15-relationship-to-implementation-profiles-psm:start | Go To Relationship to Implementation Profiles / PSM ]] Part 3 defines the platform-independent FX Demo Logical Profile. Part 4 defines the Phase 0 Implementation Profile / [[dido:99_annexes:annex-b-terms-and-definitions:p:platform_specific_model|PSM]]. Part 3 identifies FX logical [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node|Nodes]], [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node_role|Node Roles]], [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_communication_endpoint|Communication Endpoints]], information structures, [[dido:99_annexes:annex-b-terms-and-definitions:r:runtime_plane|Runtime Plane]] classifications, interaction patterns, governance relationships, and [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]] relationships. It does not bind those FX logical elements to implementation technologies, deployment mechanisms, product choices, runtime scripts, generated files, or repository layout. Part 4 provides the technology-specific mapping while preserving FX logical meaning and [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]]. This boundary allows the FX Demo Logical Profile to remain stable while implementation profiles select or compare different technologies. ---- © 2026 Dido Solutions, Inc. and Jackrabbit Consulting, Inc.