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| Criterion |  DevOps Blameless Postmortem |  Decision Making Trade-off Analysis |  Growth A/B Testing |
|---|---|---|---|
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. | With limited resources, quality, speed, cost, and risk almost always compete with each other. Trade-off Analysis makes these tensions explicit and prevents decisions from producing hidden side effects. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 30-90 min | 45-120 min | 1-4 Wochen |
Participantsdifferent | 3-12 | 2-8 | 1-6 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Trade-off Matrix, Criteria List, Decision Rationale, Accepted Downsides | Experiment results, Decision log, Learning summary |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | TradeoffsDecisionCriteriaOptions | ExperimentsGrowthAnalyticsValidation |
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