6.1 Overview

Go To FX Demo Logical Node Model

The FX Demo Logical Node Model specialises the Part 2 Logical Node Model for the Foreign Exchange Domain.

An FX logical Node represents a platform-independent participant in the FX Demo Logical Profile. Each FX logical Node performs one or more FX logical Node Roles, participates in one or more FX logical Runtime Planes, uses one or more FX logical Communication Endpoints, and handles one or more FX logical information structures.

The FX Demo Logical Node Model identifies logical responsibilities before later parts select execution mechanisms or deployment mechanisms. Part 4 maps FX logical Nodes to implementation artefacts. Part 5 deploys, tests, observes, and provides Evidence for those implementation artefacts.

The FX Demo Logical Node Model does not prescribe processes, services, containers, pods, virtual machines, libraries, threads, tasks, RPC endpoints, REST resources, DDS participants, or deployment artefacts. Implementation and deployment profiles select those realisation mechanisms.

Figure 6-1 summarises the primary FX logical Nodes used by the FX Demo Logical Profile.

FX Demo Logical Node Network
├── FX Transaction Intake Node
├── FX Validation Node
├── FX Semantic Interpretation Node
├── FX Contract State Node
├── FX Cash-Flow Computation Node
├── FX Policy and Release Node
├── FX Audit and Provenance Node
├── FX Health and Observability Node
├── FX Registry and Coordination Node
├── FX Replay and Reconstruction Node
└── External Oversight Participant

Figure 6-1: FX Demo Logical Node Network.

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