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| Criterion |  Product Strategy RICE Scoring |  Product Discovery Solution Interview |  Product Discovery Test Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When many initiatives compete for the same resources, it brings reach, impact, confidence, and effort into one shared ranking. It makes prioritization economically connectable. | 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. | 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 | Medium | Medium | Low | Medium |
Timedifferent | 60-90 min | 30-60 min je Interview | 20-35 min | 1-5 Tage |
Participantsdifferent | 2-10 | 5-10 Interviews | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | RICE Scores, Ranked List, Assumption Log | Solution Feedback, Objection List, Validation Notes | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | PrioritizationScoringRoadmapTradeoffs | ValidationInterviewsPrototype | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |