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| Criterion |  UX Research Usability Testing |  Product Discovery Pretotyping |  UX Research First-click Testing |  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. | Pretotyping clarifies whether a customer problem and solution idea create enough real demand. It separates problem, assumption, solution, and evidence, and captures the result as a pretotyping sketch, test setup, and conversion data. | When users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. | 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. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-2 h je Session | Stunden bis wenige Tage | 1-2 Tage | 1-5 Tage |
Participantsdifferent | Based on research question | 1-4 | 10-30 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async | Async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Click Heatmap, Success Rate, Design Recommendations | Click Data, Interest Signal, Learning Decision |
Tags1 shared | ValidationUXPrototype | ValidationDemandMVP | UXNavigationFindabilityValidation | ValidationExperimentsDemandDiscovery |