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| Criterion |  DevOps Blameless Postmortem |  Systems Thinking Evaporating Cloud |  Operations Learning Review |
|---|---|---|---|
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 method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-90 min | 60-120 min | 1-3 h |
Participantsdifferent | 3-12 | 2-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Learning Review Notes, System Factors, Improvement Actions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Theory of ConstraintsAssumptionsSystems thinking | LearningRetrospectiveIncidentOperations |
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