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| Criterion |  UX Research Usability Testing |  Innovation Lean Startup |  Product Discovery Hypothesis Prioritization Canvas |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | 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 many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 1-2 h je Session | Wochen bis Monate je Lernzyklus | 60-90 min | 1-5 Tage |
Participantsdifferent | Based on research question | 2-8 | 3-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Prioritization Canvas, Hypothesis Backlog | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ValidationUXPrototype | LeanStartupValidationMVP | ExperimentsPrioritizationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |