8.7 FX Contract State Node Mapping [Dido Solutions, Inc Wiki]

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====== 8.7 FX Contract State Node Mapping ======

[[fxdemo:04-part:08-mapping-from-fx-logical-nodes-to-implementation-artifacts:start | Go To Mapping from FX Logical Nodes to Implementation Artifacts ]]

The FX Contract State [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node|Node]] maps to the Phase 0 implementation artifact that establishes, updates, or reports FX Contract State from validated and semantically interpreted information.

The implementation artifact performs the Contract State Management [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node_role|Role]]. It consumes applicable validation and semantic interpretation outputs, applies the Phase 0 contract state logic, produces an implementation representation of FX Contract State, and publishes that state through the [[dido:99_annexes:annex-b-terms-and-definitions:d:dds|DDS]] Topic that realizes the FX Contract State [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_communication_endpoint|Endpoint]].

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**Table 8-5:** FX Contract State Node implementation mapping.
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^ Mapping Concern ^ Phase 0 Implementation Treatment ^
| FX logical Node | FX Contract State Node |
| Primary Node Role | Contract State Management Role |
| Primary Runtime Plane | FX Logical Data Plane |
| Supporting Runtime Planes | FX Logical Audit and Provenance Plane |
| Primary implementation responsibility | Establish, update, or report FX Contract State. |
| Primary DDS interactions | Subscribe to the required validation and semantic interpretation DDS Topics; publish to the DDS Topic that realizes the FX Contract State Endpoint. |
| Primary data artifacts | IDL and generated types representing the FX Validation Result, the FX Semantic Assertion, and FX Contract State. |
| Supporting artifacts | Contract state helper module, state rule configuration, logging helper, and traceability metadata. |
| Traceability expectation | Implementation artifact traces to the FX Contract State Node, Contract State Management Role, FX Contract State Endpoint, and FX Contract State. |

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