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| Criterion |  Product Discovery Fake Door Test |  Product Discovery Smoke Test |  Operations Ivy Lee Method |
|---|---|---|---|
Purposedifferent | 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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 1-5 Tage | 1-5 Tage | 5-10 min daily |
Participantsdifferent | Nutzertraffic | Nutzertraffic | 1 |
Formatsame | Async | Async | Async |
Outputdifferent | Click Data, Interest Signal, Learning Decision | Interest Metrics, Conversion Signal, Learning Note | Daily Priority List, Completion Notes |
Tagsno overlap | ValidationExperimentsDemandDiscovery | ValidationExperimentsDemandGrowth | PrioritizationProductivityExecution |
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