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| Criterion |  DevOps Blameless Postmortem |  DevOps Game Day |  DevOps Incident Command |  Operations Runbook |
|---|---|---|---|---|
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. | 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. | 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. | For recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 30-90 min | Halber Tag | As needed | 20-60 min |
Participantsdifferent | 3-12 | 5-20 | 4-15 | 1-4 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Simulation Notes, Gaps List, Updated Runbooks | Incident Log, Action Tracker, Stakeholder Updates | Runbook, Checklist, Escalation Path |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ResilienceOperationsIncident | IncidentOperationsReliability | OperationsReliabilityDocumentation |