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| Criterion |  Growth A/B Testing |  DevOps Blameless Postmortem |  Operations 5 Whys |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | High | Medium | Low | Low |
Timedifferent | 1-4 Wochen | 30-90 min | 15-30 min | 25-40 min |
Participantsdifferent | 1-6 | 3-12 | 2-6 | 1-5 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Experiment results, Decision log, Learning summary | Postmortem Doc, Action Items, Timeline | Root cause notes, Countermeasures | Learning Card with evidence and next action |
Tagsno overlap | ExperimentsGrowthAnalyticsValidation | Site Reliability EngineeringIncidentLearningReliability | Root causeIncidentLeanProblem solving | ExperimentsValidationDiscoveryLearning |