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| Criterion |  UX Research Usability Testing |  UX Research Card Sorting |  UX Research First-click Testing |  UX Research Tree Testing |
|---|---|---|---|---|
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 content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | 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 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. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-2 h je Session | 20-45 min | 1-2 Tage | 1-2 Tage |
Participantsdifferent | Based on research question | Based on research question | 10-30 | Based on research question |
Formatdifferent | Workshop + async | Workshop + async | Async | Async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Content groups, Label set, IA hypotheses | Click Heatmap, Success Rate, Design Recommendations | Findability Metrics, Path Analysis, Revised IA |
Tagsno overlap | ValidationUXPrototype | Information architectureNavigationStructure | UXNavigationFindabilityValidation | Information architectureNavigationFindability |