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| Criterion |  Product Discovery Pretotyping |  Operations Kepner-Tregoe |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | Pretotyping clarifies whether a customer problem and solution idea create enough real demand. It separates problem, assumption, solution, and evidence, and captures the result as a pretotyping sketch, test setup, and conversion data. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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 | Low | High | Low |
Timedifferent | Stunden bis wenige Tage | 2-8 h | 15-30 min |
Participantsdifferent | 1-4 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Problem Analysis, Decision Analysis, Risk Plan | Root cause notes, Countermeasures |
Tagsno overlap | ValidationDemandMVP | Problem solvingRoot causeDecisionOperations | Root causeIncidentLeanProblem solving |
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