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| Criterion |  Systems Thinking Evaporating Cloud |  DevOps Blameless Postmortem |  DevOps Incident Command |  Operations After-Action Review |
|---|---|---|---|---|
Purposedifferent | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | 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. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 60-120 min | 30-90 min | As needed | 20-45 min |
Participantsdifferent | 2-8 | 3-12 | 4-15 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Postmortem Doc, Action Items, Timeline | Incident Log, Action Tracker, Stakeholder Updates | Lessons learned, Action items, Event summary |
Tagsno overlap | Theory of ConstraintsAssumptionsSystems thinking | Site Reliability EngineeringIncidentLearningReliability | IncidentOperationsReliability | LearningOperationsImprovement |