====== 8.13 FX Replay and Reconstruction 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 Replay and Reconstruction [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node|Node]] maps to the Phase 0 implementation artifact that supports replay or reconstruction from preserved records.

The implementation artifact performs the Replay and Reconstruction [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node_role|Role]]. It consumes implementation representations of an FX Replay Request and relevant audit/provenance records, reconstructs selected information or lineage, and produces an implementation representation of an FX Replay Result.

<WRAP table-caption>
**Table 8-11:** FX Replay and Reconstruction Node implementation mapping.
</WRAP>

^ Mapping Concern ^ Phase 0 Implementation Treatment ^
| FX logical Node | FX Replay and Reconstruction Node |
| Primary Node Role | Replay and Reconstruction Role |
| Primary Runtime Plane | FX Logical Audit and Provenance Plane |
| Supporting Runtime Planes | FX Logical Control Plane; FX Logical Data Plane |
| Primary implementation responsibility | Replay or reconstruct selected FX information from preserved records. |
| Primary DDS interactions | Subscribe to the DDS Topic that realizes the FX Replay Request Endpoint; publish to the DDS Topic that realizes the FX Replay Result Endpoint. |
| Primary data artifacts | [[dido:99_annexes:annex-b-terms-and-definitions:i:idl|IDL]] and generated types representing the FX Replay Request and the FX Replay Result. |
| Supporting artifacts | Replay helper module, reconstruction helper module, audit/provenance access helpers, logging helper, and traceability metadata. |
| Traceability expectation | Implementation artifact traces to the FX Replay and Reconstruction Node, Replay and Reconstruction Role, FX Replay Request Endpoint, FX Replay Result Endpoint, FX Replay Request, and FX Replay Result. |

----

<WRAP centeralign>

© 2026 Dido Solutions, Inc. and Jackrabbit Consulting, Inc.

</WRAP>