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| Criterion |  DevOps Blameless Postmortem |  Growth A/B Testing |  Growth Funnel Analysis |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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 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. | When many visitors or users drop off along the way, the reason behind the number often stays hidden. Funnel Analysis exposes these transitions and makes visible exactly where the path collapses. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 30-90 min | 1-4 Wochen | 1-3 h | 45-60 min |
Participantsdifferent | 3-12 | 1-6 | 1-5 | 2-8 |
Formatdifferent | Workshop + async | Async | Async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Experiment results, Decision log, Learning summary | Funnel report, Drop-off analysis, Optimization hypotheses | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ExperimentsGrowthAnalyticsValidation | AnalyticsConversionGrowth | AssumptionsRiskExperimentsValidation |