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| Criterion |  DevOps Blameless Postmortem |  Architecture Software Architecture Canvas |  Architecture Architecture Decision Record |
|---|---|---|---|
Purposedifferent | 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. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | 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 | Low | Low |
Timedifferent | 30-90 min | 1-2 h | 15-45 min |
Participantsdifferent | 3-12 | 3-10 | 1-3 |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Architecture Canvas, Goals, Constraints, Quality Attributes | ADR File, Decision Log, Rationale |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | CanvasArchitectureAlignmentWorkshop | ArchitectureRationaleDocumentationGovernance |
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