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| Criterion |  Operations Learning Review |  DevOps Game Day |  Operations After-Action Review |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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 | 1-3 h | Halber Tag | 20-45 min | 30-90 min |
Participantsdifferent | 3-10 | 5-20 | 3-12 | 3-12 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Learning Review Notes, System Factors, Improvement Actions | Simulation Notes, Gaps List, Updated Runbooks | Lessons learned, Action items, Event summary | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | LearningRetrospectiveIncidentOperations | ResilienceOperationsIncident | LearningOperationsImprovement | Site Reliability EngineeringIncidentLearningReliability |