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| Criterion |  Agile WSJF |  Product Discovery Fake Door Test |  Product Discovery Smoke 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 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 demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. |
Complexitydifferent | High | Medium | Low |
Timedifferent | 45-90 min | 1-5 Tage | 1-5 Tage |
Participantsdifferent | 3-10 | Nutzertraffic | Nutzertraffic |
Formatdifferent | Workshop | Async | Async |
Outputdifferent | Ranked Backlog, Cost-of-Delay Assumptions | Click Data, Interest Signal, Learning Decision | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | LeanEconomicsSequencePrioritization | ValidationExperimentsDemandDiscovery | ValidationExperimentsDemandGrowth |
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