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| Criterion |  UX Research Card Sorting |  UX Research Tree Testing |  Innovation Reverse Brainstorming |  Innovation Brainstorming |
|---|---|---|---|---|
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. | For persistent errors or blockages, the method shifts the view to the opposite of the desired effect. It exposes the mechanics of failure and makes hidden causes easier to grasp. This makes improvement more concrete and the problem clearer. | 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 | Low | Medium | Low | Low |
Timedifferent | 20-45 min | 1-2 Tage | 30-60 min | 30-60 min |
Participantsdifferent | Based on research question | Based on research question | 3-12 | 4-12 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | Content groups, Label set, IA hypotheses | Findability Metrics, Path Analysis, Revised IA | Reverse Ideas, Risk Themes, Solution Ideas | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | Information architectureNavigationStructure | Information architectureNavigationFindability | BrainstormingIdeationCreativityRisk | BrainstormingIdeationCreativityWorkshopDivergence |