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| Criterion |  UX Research Usability Testing |  UX Research Tree Testing |  UX Research Empathy Mapping |  UX Research Card Sorting |
|---|---|---|---|---|
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 a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. | 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. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 1-2 h je Session | 1-2 Tage | 30–60 min | 20-45 min |
Participantsdifferent | Based on research question | Based on research question | 4-8 | Based on research question |
Formatdifferent | Workshop + async | Async | Workshop | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Findability Metrics, Path Analysis, Revised IA | Empathy Map, Assumptions List, Research Gaps | Content groups, Label set, IA hypotheses |
Tagsno overlap | ValidationUXPrototype | Information architectureNavigationFindability | SynthesisQualitativeWorkshop | Information architectureNavigationStructure |