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| Criterion |  Product Strategy ICE Scoring |  Product Discovery Test Card |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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 | Low | Low | Medium |
Timedifferent | 30-60 min | 20-35 min | 1-5 Tage |
Participantsdifferent | 2-8 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | ICE Table, Top Idea List | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | PrioritizationScoringGrowthDecision | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |
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