10.2 Traceability Across Layers [Dido Solutions, Inc Wiki]

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====== 10.2 Traceability Across Layers ======
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[[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]] across layers preserves architectural meaning as later parts specialize, realize, deploy, and provide [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]] for the conceptual architecture.

Each layer has a distinct [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]] responsibility:

Table 10.2-1: Traceability responsibilities across architectural layers

^ Layer ^ Traceability responsibility ^
| Conceptual Architecture | Defines stable concepts and conceptual boundaries. |
| Logical Architecture / [[dido:99_annexes:annex-b-terms-and-definitions:p:platform_independent_model|Platform Independent Model (PIM)]] | Specializes conceptual elements into platform-independent logical structures, relationships, and constraints. |
| Implementation Profile / [[dido:99_annexes:annex-b-terms-and-definitions:p:platform_specific_model|Platform Specific Model (PSM)]] | Maps logical elements to selected implementation technologies and artifacts. |
| Deployment Profile | Describes how implementation artifacts run in a concrete environment. |
| [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]] | Supports claims about architecture, implementation, deployment, execution, [[dido:99_annexes:annex-b-terms-and-definitions:i:interpretation|Interpretation]], [[dido:99_annexes:annex-b-terms-and-definitions:g:governance_and_authority|Governance and Authority]], or review. |

[[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]] keeps these layers connected without allowing one layer to redefine another. A logical element may specialize a conceptual element. An implementation artifact may realize a logical element. A deployment artifact may execute or configure an implementation artifact. [[dido:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]] may support a claim about any of these layers.

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