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| Criterion |  Product Discovery Problem Interview |  Product Discovery Opportunity Scoring |  Product Discovery Jobs to Be Done |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | When opportunities need ranking by their effect, it makes importance and satisfaction directly comparable. It separates problem, assumption, solution, and evidence. The result is captured as an opportunity-score table and top outcomes. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-60 min je Interview | 60-120 min | 1-3 Wochen | 1-5 Tage |
Participantsdifferent | 5-12 Interviews | 3-6 | 5-12 Interviews | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Opportunity Score Table, Top Outcomes | Job Stories, Outcome Statements, Opportunity List | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | DiscoveryInterviewsValidation | PrioritizationDiscoveryOutcomesNeeds | CustomerOutcomesNeeds | ValidationExperimentsDemandDiscovery |