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| Criterion |  DevOps Blameless Postmortem |  Product Discovery Assumption Mapping |  Architecture Architecture Inception Canvas |
|---|---|---|---|
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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 30-90 min | 45-60 min | 1-2 h |
Participantsdifferent | 3-12 | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Assumption map, Test backlog, Risk ranking | Inception Canvas, Risks, Goal List, Open Questions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | AssumptionsRiskExperimentsValidation | AlignmentArchitectureCanvas |
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