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| Criterion | ![]() Product Discovery Problem Interview | ![]() Innovation Design Thinking | ![]() Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 | High | Medium |
Timedifferent | 30-60 min je Interview | 1 Tag bis mehrere Wochen | 1-5 Tage |
Participantsdifferent | 5-12 Interviews | 4-10 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Problem Statement, Prototype, Test Learnings | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | DiscoveryInterviewsValidation | InnovationPrototypeResearch | ValidationExperimentsDemandDiscovery |
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