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| Criterion |  Innovation Lean Startup |  Product Discovery Landing Page Test |  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. | When a value proposition first needs to be checked for resonance, it condenses the idea onto a focused entry page. It shows whether language and offering carry interest. | 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 | Low |
Timedifferent | Wochen bis Monate je Lernzyklus | 1-5 Tage | 15-30 min |
Participantsdifferent | 2-8 | Nutzertraffic | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Landing Page, Conversion Data, Learning Summary | Root cause notes, Countermeasures |
Tagsno overlap | LeanStartupValidationMVP | ValidationConversionMarketing | Root causeIncidentLeanProblem solving |
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