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| Criterion |  UX Research Tree Testing |  UX Research Card Sorting |  UX Research Empathy Mapping |  Innovation Brainstorming |
|---|---|---|---|---|
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 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 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 a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-2 Tage | 20-45 min | 30–60 min | 30-60 min |
Participantsdifferent | Based on research question | Based on research question | 4-8 | 4-12 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | Content groups, Label set, IA hypotheses | Empathy Map, Assumptions List, Research Gaps | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | Information architectureNavigationFindability | Information architectureNavigationStructure | SynthesisQualitativeWorkshop | BrainstormingIdeationCreativityWorkshopDivergence |