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| Criterion |  DevOps Blameless Postmortem |  Systems Thinking Evaporating Cloud |  Decision Making Assumption Surfacing |  DevOps Incident Command |
|---|---|---|---|---|
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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 30-90 min | 60-120 min | 45-90 min | As needed |
Participantsdifferent | 3-12 | 2-8 | 2-8 | 4-15 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Assumption List, Critical Assumptions, Learning Plan | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Theory of ConstraintsAssumptionsSystems thinking | AssumptionsRiskDecisionDiscovery | IncidentOperationsReliability |