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| Criterion |  Product Discovery Pretotyping |  Growth A/B Testing |  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. | 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. | 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 | 1-4 Wochen | 15-30 min |
Participantsdifferent | 1-4 | 1-6 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Experiment results, Decision log, Learning summary | Root cause notes, Countermeasures |
Tagsno overlap | ValidationDemandMVP | ExperimentsGrowthAnalyticsValidation | Root causeIncidentLeanProblem solving |
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