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| Criterion |  Product Discovery Solution Interview |  UX Research Tree Testing |  UX Research Surveys |  UX Research Card Sorting |
|---|---|---|---|---|
Purposedifferent | 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 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 a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | 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 | Medium | Medium | Medium | Low |
Timedifferent | 30-60 min je Interview | 1-2 Tage | 3-14 Tage | 20-45 min |
Participantsdifferent | 5-10 Interviews | Based on research question | 50+ | Based on research question |
Formatdifferent | Workshop + async | Async | Async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Findability Metrics, Path Analysis, Revised IA | Survey Results, Charts, Segment Insights | Content groups, Label set, IA hypotheses |
Tagsno overlap | ValidationInterviewsPrototype | Information architectureNavigationFindability | QuantitativeResearchValidation | Information architectureNavigationStructure |