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| Criterion |  Product Discovery Solution Interview |  Product Discovery Fake Door Test |  Innovation Design Sprint |
|---|---|---|---|
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 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 the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 30-60 min je Interview | 1-5 Tage | 4-5 Tage |
Participantsdifferent | 5-10 Interviews | Nutzertraffic | 5-8 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Click Data, Interest Signal, Learning Decision | Prototype, Test Findings, Decision Rationale |
Tags1 shared | ValidationInterviewsPrototype | ValidationExperimentsDemandDiscovery | Design sprintPrototypeValidationInnovation |
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