====== TWIN-005f — Preserve Twin Realization State Provenance ======

[[dido:03-dido-te:99-annexes:annex-c-requirements:03-functional-requirements:03-03-twin-node-requirements:twin-005-acquire-twin-state:start|Go to TWIN-005 — Access Twin Realization State]]

===== Statement =====

The [[dido:99_annexes:annex-b-terms-and-definitions:d:dido-te|DIDO-TE]] SHALL preserve the provenance associated with each determined state of a [[dido:99_annexes:annex-b-terms-and-definitions:t:twin_realization|Twin Realization]].

===== Source =====

  * [[dido:03-dido-te:99-annexes:annex-b-references:dte-001|[DTE1] U.S. Patent Application US20220237111A1]], baseline test results, modification of Twin Nodes, comparison of results, and validation
  * [[dido:03-dido-te:99-annexes:annex-b-references:dte-002|[DTE2] Non-Traditional BAA Submission]], Digital Twin concepts, monitoring, scenario testing, and testing across Twin Nodes
  * [[dido:03-dido-te:99-annexes:annex-b-references:dte-009|[DTE9] Distributed Immutable Data Object Reference Architecture (DIDO-RA)]], distributed data and traceability concepts

===== Rationale =====

Interpretation of the state of a [[dido:99_annexes:annex-b-terms-and-definitions:t:twin_realization|Twin Realization]] depends on knowing how the state was derived.

Provenance preserves the relationship among the determined state, its constituent state values, their originating [[dido:99_annexes:annex-b-terms-and-definitions:d:data_source|Data Sources]], the Twin Realization, and the governing Test Execution context.

Preserved provenance supports reproducibility, comparison, [[dido:99_annexes:annex-b-terms-and-definitions:v:validation|Validation]], evidence generation, and later investigation of unexpected results.

Communication metadata alone does not establish complete provenance unless the governing architecture explicitly defines that metadata as part of the provenance record.

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

  * [[dido:99_annexes:annex-b-terms-and-definitions:d:dido-te|DIDO-TE]]
  * [[dido:99_annexes:annex-b-terms-and-definitions:t:twin_realization|Twin Realization]]
  * [[dido:99_annexes:annex-b-terms-and-definitions:t:twin_relationship|Twin Relationship]]
  * [[dido:99_annexes:annex-b-terms-and-definitions:d:data_source|Data Source]]
  * [[dido:99_annexes:annex-b-terms-and-definitions:t:twin_data_mapping|Twin Data Mapping]]
  * [[dido:99_annexes:annex-b-terms-and-definitions:t:test_execution|Test Execution]]
  * [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]]
  * [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]]

===== Verification =====

Verification confirms that:

  - Each determined state of a Twin Realization has associated provenance information.
  - The provenance identifies the Twin Realization whose state was determined.
  - The provenance identifies the Data Source of each constituent state value.
  - The provenance preserves the association between the determined state and the Test Execution in which the state was determined.
  - The provenance remains associated with the determined state after the state is recorded, transferred, or used for subsequent analysis.
  - The preserved provenance supports traceability from the determined state to the information used to derive it.

Verification includes reconstruction of the origin and Test Execution context of a recorded state using preserved provenance information.

===== Traceability =====

{{backlinks>.}}

===== ConOps Relationship =====

This requirement preserves the origin and derivation context of the state of a Twin Realization so that subsequent comparison, Validation, evidence generation, and analysis remain traceable and reproducible.

===== Delivery Phase =====

TBD

===== Requirement Status =====

Draft

===== Statement Reference =====

<code dokuwiki>
{{section>dido:03-dido-te:99-annexes:annex-c-requirements:03-functional-requirements:03-03-twin-node-requirements:twin-005-acquire-twin-state:twin-005f-preserve-twin-state-provenance#Statement&noheader&nofooter&noeditbtn}}
</code>

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