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| Criterion |  Innovation Lean Startup |  DevOps Blameless Postmortem |  Product Discovery Assumption Mapping |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | Wochen bis Monate je Lernzyklus | 30-90 min | 45-60 min | 15-30 min |
Participantsdifferent | 2-8 | 3-12 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Postmortem Doc, Action Items, Timeline | Assumption map, Test backlog, Risk ranking | Root cause notes, Countermeasures |
Tagsno overlap | LeanStartupValidationMVP | Site Reliability EngineeringIncidentLearningReliability | AssumptionsRiskExperimentsValidation | Root causeIncidentLeanProblem solving |