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| Criterion |  Product Discovery Solution Interview |  Innovation Lean Startup |  Product Discovery Problem Interview |
|---|---|---|---|
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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-60 min je Interview | Wochen bis Monate je Lernzyklus | 30-60 min je Interview |
Participantsdifferent | 5-10 Interviews | 2-8 | 5-12 Interviews |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Problem Evidence, Risk Notes, Customer Segments |
Tags1 shared | ValidationInterviewsPrototype | LeanStartupValidationMVP | DiscoveryInterviewsValidation |
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