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| Criterion |  Engineering Hypothesis-Driven Troubleshooting |  Product Discovery Assumption Mapping |  Product Discovery Learning Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 30-240 min | 45-60 min | 25-40 min | 1-5 Tage |
Participantsdifferent | 1-6 | 2-8 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Assumption map, Test backlog, Risk ranking | Learning Card with evidence and next action | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | TroubleshootingProblem solvingDiagnosis | AssumptionsRiskExperimentsValidation | ExperimentsValidationDiscoveryLearning | ValidationExperimentsDemandDiscovery |