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| Criterion |  Innovation Lean Startup |  Product Discovery Solution Interview |  Product Discovery MVP Test Matrix |  Product Discovery Problem Interview |
|---|---|---|---|---|
Purposedifferent | 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 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 several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. | 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 | Medium |
Timedifferent | Wochen bis Monate je Lernzyklus | 30-60 min je Interview | 45-75 min | 30-60 min je Interview |
Participantsdifferent | 2-8 | 5-10 Interviews | 2-8 | 5-12 Interviews |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Solution Feedback, Objection List, Validation Notes | Test Matrix, Test Plan | Problem Evidence, Risk Notes, Customer Segments |
Tags1 shared | LeanStartupValidationMVP | ValidationInterviewsPrototype | ExperimentsValidationDiscoveryOptions | DiscoveryInterviewsValidation |