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| Criterion |  DevOps Blameless Postmortem |  DevOps Game Day |  Decision Making Delphi Method |
|---|---|---|---|
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. | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. |
Complexitydifferent | Medium | High | High |
Timedifferent | 30-90 min | Halber Tag | 1-4 Wochen |
Participantsdifferent | 3-12 | 5-20 | 6-30 Experten |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Simulation Notes, Gaps List, Updated Runbooks | Expert Forecast, Consensus Range, Assumption Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ResilienceOperationsIncident | ForecastingExpertsDecisionStrategy |
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