====== Validation-Controlled Transition ======

[[dido:99_annexes:annex-b-terms-and-definitions:start|Return to Terms and Definitions]]

===== Discussion =====

Validation-controlled transitions depend on the result of logical validation.

The [[dido:99_annexes:annex-b-terms-and-definitions:f:fx_validation_node|FX Validation Node]] produces an [[dido:99_annexes:annex-b-terms-and-definitions:f:fx_validation_result|FX Validation Result]]. That result determines whether an FX Transaction Candidate proceeds to semantic interpretation, is returned for correction, is rejected, or supports an audit/provenance record explaining the validation failure.

A validation-controlled transition identifies the input transaction candidate, [[dido:99_annexes:annex-b-terms-and-definitions:f:fx_validation_result|FX Validation Result]], validation rule version, producing [[dido:99_annexes:annex-b-terms-and-definitions:f:fx_validation_node|FX Validation Node]], timestamp, resulting lifecycle state, and provenance reference.

Validation-controlled transitions preserve the distinction between candidate information and accepted transaction information. A candidate transaction does not become a validated FX Transaction Record until the [[dido:99_annexes:annex-b-terms-and-definitions:f:fx_validation_result|FX Validation Result]] supports that transition.

===== Definition =====

//FX lifecycle transition governed by an FX Validation Result.//

===== Source =====

Specialization of [[dido:99_annexes:annex-b-terms-and-definitions:f:fx_validation_result|FX Validation Result]] from Section 9.4, [[dido:99_annexes:annex-b-terms-and-definitions:s:structural_validation_role|Structural Validation Role]] from Section 7.3, [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_assertion|Logical Assertion]] from Part 2, Section 8.8, and [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]] from Part 1, Section 7.10; generalised from FX validation and transaction-lifecycle material in the original FX Demo Reference Architecture.

===== Note =====

Validation-controlled transitions do not prescribe a validation engine, schema validator, rules engine, test framework, database status update, or runtime workflow.

===== Example =====

An FX Transaction Candidate moves from **Validation Pending** to **Validation Passed** when the [[dido:99_annexes:annex-b-terms-and-definitions:f:fx_validation_node|FX Validation Node]] produces an [[dido:99_annexes:annex-b-terms-and-definitions:f:fx_validation_result|FX Validation Result]] confirming conformance with required logical validation expectations.

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