====== 3.8 Traceability Position ======

[[fxdemo:04-part:03-traceability-to-parent-and-source-architectures:start | Go To Traceability to Parent and Source Architectures ]]

This part uses the following [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|traceability]] position.

SIP-RA provides the parent structured information-processing discipline. FDIS-RA provides financial-domain interpretation alignment. Part 1 provides the conceptual foundation. Part 2 provides the reusable distributed, node-based Logical Architecture / [[dido:99_annexes:annex-b-terms-and-definitions:p:platform_independent_model|Platform-Independent Model (PIM)]]. Part 3 provides the FX Demo Logical Profile. Phase 0 implementation source material provides the selected implementation context. The Phase 0 Developer Handbook provides the detailed development discipline required before coding begins.

This traceability position prevents four kinds of confusion.

  - It prevents Phase 0 implementation artifacts from redefining the Part 1 Conceptual Architecture.
  - It prevents implementation artifacts from redefining the Part 2 Logical Architecture / Platform-Independent Model (PIM).
  - It prevents [[dido:99_annexes:annex-b-terms-and-definitions:d:dds|DDS]], [[dido:99_annexes:annex-b-terms-and-definitions:i:idl|IDL]], Quality of Service (QoS) profiles, generated types, Python scripts, repository layout, or other implementation mechanisms from redefining the Part 3 FX Demo Logical Profile.
  - It prevents the Phase 0 Developer Handbook from replacing the implementation profile.

Part 4 defines the Phase 0 Implementation Profile / [[dido:99_annexes:annex-b-terms-and-definitions:p:platform_specific_model|Platform-Specific Model (PSM)]]. Later development phases may define additional implementation profiles that extend, refine, supersede, or replace this profile while preserving [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|traceability]] to the applicable conceptual, logical, domain logical, implementation, and Developer Handbook artifacts.

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