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| Criterion |  Innovation Design Thinking |  UX Research Tree Testing |  UX Research First-click Testing |  UX Research Card Sorting |
|---|---|---|---|---|
Purposedifferent | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. | 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 | High | Medium | Low | Low |
Timedifferent | 1 Tag bis mehrere Wochen | 1-2 Tage | 1-2 Tage | 20-45 min |
Participantsdifferent | 4-10 | Based on research question | 10-30 | Based on research question |
Formatdifferent | Workshop | Async | Async | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Findability Metrics, Path Analysis, Revised IA | Click Heatmap, Success Rate, Design Recommendations | Content groups, Label set, IA hypotheses |
Tagsno overlap | InnovationPrototypeResearch | Information architectureNavigationFindability | UXNavigationFindabilityValidation | Information architectureNavigationStructure |