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| Criterion |  Architecture Architecture Inception Canvas |  DevOps Blameless Postmortem |  Architecture Architecture Decision Record |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | The Architecture Inception Canvas bundles the first architecture questions into a compact decision picture. It fits when an initiative is still in motion but still needs clear guardrails. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 1-2 h | 30-90 min | 15-45 min | 30-60 min |
Participantsdifferent | 3-8 | 3-12 | 1-3 | 2-10 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Inception Canvas, Risks, Goal List, Open Questions | Postmortem Doc, Action Items, Timeline | ADR File, Decision Log, Rationale | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | AlignmentArchitectureCanvas | Site Reliability EngineeringIncidentLearningReliability | ArchitectureRationaleDocumentationGovernance | DecisionRolesGovernanceAlignment |