====== 5.7 Logical Traceability Model ======
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The logical [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]] model maps Part 2 logical elements to Part 1 conceptual elements, preparing them for later implementation, deployment, testability, and [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]] mapping.

A Logical Node traces to [[dido:99_annexes:annex-b-terms-and-definitions:f:financial_node|Node]]. A [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_node_role|Logical Node Role]] traces to [[dido:99_annexes:annex-b-terms-and-definitions:n:node_role|Node Role]]. A [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_communication_endpoint|Logical Communication Endpoint]] traces to [[dido:99_annexes:annex-b-terms-and-definitions:c:communication_endpoint|Communication Endpoint]]. A [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_data_structure_definition|Logical Data Structure Definition]] traces to [[dido:99_annexes:annex-b-terms-and-definitions:d:data_structure_definition|Data Structure Definition]]. A [[dido:99_annexes:annex-b-terms-and-definitions:l:logical_data_structure_instance|Logical Data Structure Instance]] traces to a [[dido:99_annexes:annex-b-terms-and-definitions:d:data_structure_instance|Data Structure Instance]]. A Logical Runtime Plane traces to the [[dido:99_annexes:annex-b-terms-and-definitions:r:runtime_plane|Runtime Plane]]. Logical evidence expectations trace to [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]]. Logical trace relationships trace to [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]].

The logical [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]] model supports forward review from concept to logical model and backward review from logical element to conceptual source. It also supports later [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]] from logical model to implementation artifacts, deployment artifacts, and [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]].

The Logical Architecture / PIM therefore establishes a reviewable, platform-independent structure that later parts can specialize, implement, deploy, test, and [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]] without redefining the conceptual foundation.

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