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| Criterion |  DevOps Blameless Postmortem |  Architecture Risk Storming |  Product Discovery Experiment 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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | When experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 30-90 min | 60-90 min | 30-60 min |
Participantsdifferent | 3-12 | 4-12 | 1-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Annotated Diagram, Prioritized Risk List, Action Backlog | Completed Experiment Canvas, Success Metric |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | RiskArchitectureWorkshopValidation | ExperimentsValidationDiscoveryHypothesis |
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