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| Criterion |  Operations Change Analysis |  Decision Making Decision Rights Mapping |  Architecture Architecture Decision Record |
|---|---|---|---|
Purposedifferent | 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. | In organizations with many stakeholders, it often blurs who actually decides and who is merely consulted. It separates options, evaluation criteria, and open risks. The result is captured as a Decision Rights matrix and an agreement. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 45-120 min | 90-180 min | 15-45 min |
Participantsdifferent | 2-6 | 4-12 | 1-3 |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Decision Rights Matrix, Agreement | ADR File, Decision Log, Rationale |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | DecisionGovernanceAlignmentResponsibility | ArchitectureRationaleDocumentationGovernance |
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