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| Criterion |  DevOps Blameless Postmortem |  Growth Growth Experiment |  Operations After-Action Review |  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. | When growth ideas surface quickly, the temptation to build immediately instead of learning is high. A Growth Experiment frames an assumption so target group, lever, and measurement are clear before the first deployment. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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 | Low | High |
Timedifferent | 30-90 min | 1-2 Wochen | 20-45 min | 1-4 Wochen |
Participantsdifferent | 3-12 | 1-6 | 3-12 | 1-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Experiment card, Result summary, Next bet | Lessons learned, Action items, Event summary | Experiment results, Decision log, Learning summary |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | MarketingGrowthExperimentsLearning | LearningOperationsImprovement | ExperimentsGrowthAnalyticsValidation |