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| Criterion |  DevOps Incident Command |  DevOps Game Day |  Decision Making Assumption Surfacing |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | 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. | In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic. | 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. | 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. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | As needed | Halber Tag | 45-90 min | 30-90 min |
Participantsdifferent | 4-15 | 5-20 | 2-8 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Incident Log, Action Tracker, Stakeholder Updates | Simulation Notes, Gaps List, Updated Runbooks | Assumption List, Critical Assumptions, Learning Plan | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | IncidentOperationsReliability | ResilienceOperationsIncident | AssumptionsRiskDecisionDiscovery | Site Reliability EngineeringIncidentLearningReliability |