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| Criterion |  Product Discovery Solution Interview |  Product Discovery Smoke Test |  Product Discovery Pretotyping |  Product Discovery Fake Door Test |
|---|---|---|---|---|
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 demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | Pretotyping clarifies whether a customer problem and solution idea create enough real demand. It separates problem, assumption, solution, and evidence, and captures the result as a pretotyping sketch, test setup, and conversion data. | 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 | Medium | Low | Low | Medium |
Timedifferent | 30-60 min je Interview | 1-5 Tage | Stunden bis wenige Tage | 1-5 Tage |
Participantsdifferent | 5-10 Interviews | Nutzertraffic | 1-4 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Interest Metrics, Conversion Signal, Learning Note | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Click Data, Interest Signal, Learning Decision |
Tags1 shared | ValidationInterviewsPrototype | ValidationExperimentsDemandGrowth | ValidationDemandMVP | ValidationExperimentsDemandDiscovery |