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| Criterion |  Agile WSJF |  Product Discovery Problem Interview |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | When many tasks compete for the same capacity, it orders work by economic impact. It makes time lost, benefit, and effort comparable together. | 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 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 | High | Medium | Medium |
Timedifferent | 45-90 min | 30-60 min je Interview | 1-5 Tage |
Participantsdifferent | 3-10 | 5-12 Interviews | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Async |
Outputdifferent | Ranked Backlog, Cost-of-Delay Assumptions | Problem Evidence, Risk Notes, Customer Segments | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | LeanEconomicsSequencePrioritization | DiscoveryInterviewsValidation | ValidationExperimentsDemandDiscovery |
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