Forewordx

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The Financial Systems Archetype document set provides a layered architecture for applying structured information processing principles to financial systems. Part 0: Document Set Overview and Reader’s Guide explains the document set, the layered structure, the reader’s guide, and the rules for preserving separation among conceptual, logical, implementation, deployment, testability, and evidence concerns.

Part 1: Conceptual Architecture defines the Conceptual Architecture. It establishes the conceptual foundation for the Financial Systems Archetype, including classification, core conceptual elements, Runtime Plane, traceability, evidence, and separation-of-concerns concepts.

This part defines a distributed, node-based Logical Architecture as a Platform Independent Model (PIM). It specialises the concepts defined in Part 1 into logical Nodes, logical Node Roles, logical Communication Endpoints, logical information structures, logical Runtime Planes, logical interaction patterns, logical governance relationships, and logical traceability relationships.

This part defines one Logical Architecture that conforms to the Part 1 Conceptual Architecture. It does not define every possible Logical Architecture that conforms to Part 1. Other logical architectures conform to Part 1 by preserving the conceptual definitions, separation of concerns, traceability, evidence orientation, and layering rules defined there.

This part does not define the FX Demo Logical Profile, Phase 0 implementation mappings, deployment procedures, Crucible scenarios, acceptance checks, scripts, repository structure, or runtime evidence. Later parts and supporting repository documentation address those concerns.