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| Criterion |  Product Discovery Solution Interview |  Product Discovery Jobs to Be Done |  Product Discovery Fake Door Test |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
Purposedifferent | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | When switching motives and progress are unclear, it reconstructs the situation from real customer circumstances. It shows why a switch happens and what kind of progress is being sought. | 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. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-60 min je Interview | 1-3 Wochen | 1-5 Tage | 45-75 min |
Participantsdifferent | 5-10 Interviews | 5-12 Interviews | Nutzertraffic | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Job Stories, Outcome Statements, Opportunity List | Click Data, Interest Signal, Learning Decision | Test Matrix, Test Plan |
Tagsno overlap | ValidationInterviewsPrototype | CustomerOutcomesNeeds | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryOptions |