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| Criterion |  Product Discovery Landing Page Test |  Innovation Lean Startup |  Operations 8D Problem Solving |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | 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 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. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 1-5 Tage | Wochen bis Monate je Lernzyklus | 1-6 Wochen | 1-4 h |
Participantsdifferent | Nutzertraffic | 2-8 | 4-10 | 3-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Landing Page, Conversion Data, Learning Summary | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | ValidationConversionMarketing | LeanStartupValidationMVP | QualityProblem solvingRoot cause | Root causeProblem solvingQualityIncident |