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| Criterion |  Operations Root Cause Analysis |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|
Purposedifferent | 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. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-4 h | 1-5 Tage | 25-40 min |
Participantsdifferent | 3-8 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | Root causeProblem solvingQualityIncident | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |
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