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| Criterion |  Architecture Architecture Decision Record |  Business Strategy GAP Analysis |  Operations Change Analysis |
|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | GAP Analysis compares the current state with a target picture and makes the distance manageable. It becomes useful when, ahead of new initiatives, it must become clear which capabilities, processes, or resources are missing. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 15-45 min | 1-3 h | 45-120 min |
Participantsdifferent | 1-3 | 2-8 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Gap Matrix, Action Plan, Risk Notes | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | StrategyAnalysisPlanning | ChangeRoot causeTroubleshootingComparison |
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