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| Criterion |  UX Research Card Sorting |  UX Research Usability Testing |  Product Discovery Solution Interview |  UX Research First-click Testing |
|---|---|---|---|---|
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 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 a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 20-45 min | 1-2 h je Session | 30-60 min je Interview | 1-2 Tage |
Participantsdifferent | Based on research question | Based on research question | 5-10 Interviews | 10-30 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Content groups, Label set, IA hypotheses | Usability Issues, Severity List, Recommendations | Solution Feedback, Objection List, Validation Notes | Click Heatmap, Success Rate, Design Recommendations |
Tagsno overlap | Information architectureNavigationStructure | ValidationUXPrototype | ValidationInterviewsPrototype | UXNavigationFindabilityValidation |