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| Criterion |  UX Research Usability Testing |  UX Research Tree Testing |  Product Discovery Problem Interview |
|---|---|---|---|
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. | When a navigation exists but search paths still fail, tree testing checks findability without visual distraction. The method shows whether labels, levels, and paths really lead to the intended destination. | 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 |
Timedifferent | 1-2 h je Session | 1-2 Tage | 30-60 min je Interview |
Participantsdifferent | Based on research question | Based on research question | 5-12 Interviews |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Findability Metrics, Path Analysis, Revised IA | Problem Evidence, Risk Notes, Customer Segments |
Tagsno overlap | ValidationUXPrototype | Information architectureNavigationFindability | DiscoveryInterviewsValidation |
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