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| Criterion |  Decision Making Wideband Delphi |  DevOps Blameless Postmortem |  DevOps Game Day |
|---|---|---|---|
Purposedifferent | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | 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. |
Complexitydifferent | High | Medium | High |
Timedifferent | 1-4 h or multiple rounds | 30-90 min | Halber Tag |
Participantsdifferent | 4-12 Experten | 3-12 | 5-20 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Estimate Range, Assumption Log, Expert Consensus Notes | Postmortem Doc, Action Items, Timeline | Simulation Notes, Gaps List, Updated Runbooks |
Tagsno overlap | EstimationExpertsForecasting | Site Reliability EngineeringIncidentLearningReliability | ResilienceOperationsIncident |
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