====== P4-REQ-21-7-003 ======

[[dido:99_annexes:annex-d-requirements:part-04:start| Return to Requirements]]

===== Statement =====

The Phase 0 Implementation Profile / PSM SHALL define Data Plane realization for FX transaction, validation, semantic, contract state, and cash-flow information exchange.

===== Source =====

Part 4, Section 21.7: Runtime Plane Realization Requirements.

===== Rationale =====

The Data Plane carries the structured FX information needed to demonstrate the Phase 0 processing path.

Defining a Data Plane realization ensures that transaction, validation, semantic, contract state, and cash-flow information exchanges have an explicit implementation mapping while preserving their logical meaning.

===== Applies To =====

This requirement applies to:

  * Data Plane DDS Topics;
  * transaction information;
  * validation information;
  * semantic information;
  * contract state information;
  * cash-flow information; and
  * applicable publishers and subscribers.

===== Verification =====

Verification SHALL confirm that the Phase 0 Implementation Profile / PSM defines a Data Plane realization for the specified FX information exchanges.

Verification activities should include review checks confirming that:

  * applicable Data Plane Topics are identified;
  * applicable information structures are mapped;
  * producing and consuming participants are identified;
  * Data Plane exchanges support the Phase 0 processing path; and
  * Data Plane concerns remain distinct from other Runtime Plane concerns.

===== Traceability =====

This requirement establishes the Phase 0 realization of the FX Logical Data Plane.

Related requirement identifiers:

  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-7-001]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-7-007]]
  * [[dido:99_annexes:annex-d-requirements:part-04:p4-req-21-7-008]]

Related source section:

  * [[fxdemo:04-part:21-phase-0-implementation-requirements:21-7-runtime-plane-realization-requirements:start]]

===== Status =====

Draft

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