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| Criterion |  Operations 5 Whys |  Operations Root Cause Analysis |  Innovation Lean Startup |
|---|---|---|---|
Purposedifferent | 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 15-30 min | 1-4 h | Wochen bis Monate je Lernzyklus |
Participantsdifferent | 2-6 | 3-8 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision |
Tagsno overlap | Root causeIncidentLeanProblem solving | Root causeProblem solvingQualityIncident | LeanStartupValidationMVP |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
