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| Criterion |  DevOps Blameless Postmortem |  Innovation Lean Startup |  Product Discovery Assumption Mapping |  Product Discovery Learning Card |
|---|---|---|---|---|
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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 30-90 min | Wochen bis Monate je Lernzyklus | 45-60 min | 25-40 min |
Participantsdifferent | 3-12 | 2-8 | 2-8 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Assumption map, Test backlog, Risk ranking | Learning Card with evidence and next action |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | LeanStartupValidationMVP | AssumptionsRiskExperimentsValidation | ExperimentsValidationDiscoveryLearning |