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| Criterion |  UX Research Card Sorting |  UX Research Tree Testing |  Facilitation Nominal Group Technique |  Facilitation Dot Voting |
|---|---|---|---|---|
Purposedifferent | 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 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 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. | When a workshop has produced too many options and the group needs to condense quickly, dot voting makes preferences visible in a short time. It bundles individual votes into a solid signal for the next selection. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 20-45 min | 1-2 Tage | 60-120 min | 5-15 min |
Participantsdifferent | Based on research question | Based on research question | 5-12 | 3-20 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | Content groups, Label set, IA hypotheses | Findability Metrics, Path Analysis, Revised IA | Ranked Ideas, Clarified Options, Group Priority | Ranked list, Consensus signal, Shortlist |
Tagsno overlap | Information architectureNavigationStructure | Information architectureNavigationFindability | FacilitationPrioritizationVotingInclusion | FacilitationVotingConsensusPrioritization |