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| Criterion |  DevOps Blameless Postmortem |  Operations Runbook |  Operations Learning Review |  DevOps Game Day |
|---|---|---|---|---|
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. | 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. | 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. | 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. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 30-90 min | 20-60 min | 1-3 h | Halber Tag |
Participantsdifferent | 3-12 | 1-4 | 3-10 | 5-20 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Runbook, Checklist, Escalation Path | Learning Review Notes, System Factors, Improvement Actions | Simulation Notes, Gaps List, Updated Runbooks |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | OperationsReliabilityDocumentation | LearningRetrospectiveIncidentOperations | ResilienceOperationsIncident |