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| Criterion |  DevOps Blameless Postmortem |  Decision Making Decision Matrix |  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. | 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. | 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 | Medium | High |
Timedifferent | 30-90 min | 45-90 min | 1-4 Wochen |
Participantsdifferent | 3-12 | 2-8 | 6-30 Experten |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Decision Matrix, Scoring Rationale, Selected Option | Expert Forecast, Consensus Range, Assumption Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | DecisionCriteriaScoringTradeoffs | ForecastingExpertsDecisionStrategy |
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