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| Criterion |  UX Research Tree Testing |  UX Research Usability Testing |  Facilitation Nominal Group Technique |
|---|---|---|---|
Purposedifferent | 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 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 loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-2 Tage | 1-2 h je Session | 60-120 min |
Participantsdifferent | Based on research question | Based on research question | 5-12 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | Usability Issues, Severity List, Recommendations | Ranked Ideas, Clarified Options, Group Priority |
Tagsno overlap | Information architectureNavigationFindability | ValidationUXPrototype | FacilitationPrioritizationVotingInclusion |
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