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| Criterion |  Product Discovery Solution Interview |  Product Discovery Smoke Test |  Product Strategy ICE Scoring |  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. | When ideas need sorting quickly, it condenses impact, confidence, and effort into one compact score. It connects customer value, product logic, and decision priorities. The result is captured as an ICE table and top-ideas list. | 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 | 30-60 min | 1-5 Tage |
Participantsdifferent | 5-10 Interviews | Nutzertraffic | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Interest Metrics, Conversion Signal, Learning Note | ICE Table, Top Idea List | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ValidationInterviewsPrototype | ValidationExperimentsDemandGrowth | PrioritizationScoringGrowthDecision | ValidationExperimentsDemandDiscovery |