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| Criterion |  DevOps Blameless Postmortem |  Decision Making Decision Matrix |  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. | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | 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 | Medium | High |
Timedifferent | 30-90 min | 45-90 min | Halber Tag |
Participantsdifferent | 3-12 | 2-8 | 5-20 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Decision Matrix, Scoring Rationale, Selected Option | Simulation Notes, Gaps List, Updated Runbooks |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | DecisionCriteriaScoringTradeoffs | ResilienceOperationsIncident |
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