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| Criterion |  Product Discovery Solution Interview |  Innovation Lean Startup |  UX Research Surveys |  Innovation Design Thinking |
|---|---|---|---|---|
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 a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | 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. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | 30-60 min je Interview | Wochen bis Monate je Lernzyklus | 3-14 Tage | 1 Tag bis mehrere Wochen |
Participantsdifferent | 5-10 Interviews | 2-8 | 50+ | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Survey Results, Charts, Segment Insights | Problem Statement, Prototype, Test Learnings |
Tagsno overlap | ValidationInterviewsPrototype | LeanStartupValidationMVP | QuantitativeResearchValidation | InnovationPrototypeResearch |