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| Criterion |  Product Discovery Solution Interview |  Product Strategy Lean Canvas |  Innovation Design Sprint |  Innovation Lean Startup |
|---|---|---|---|---|
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 an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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. | 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. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 30-60 min je Interview | 45-90 min | 4-5 Tage | Wochen bis Monate je Lernzyklus |
Participantsdifferent | 5-10 Interviews | 1-6 | 5-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Lean Canvas, Core Assumptions, Experiment Backlog | Prototype, Test Findings, Decision Rationale | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision |
Tagsno overlap | ValidationInterviewsPrototype | StartupLeanAssumptionsBusiness model | Design sprintPrototypeValidationInnovation | LeanStartupValidationMVP |