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| Criterion |  Product Discovery Problem Interview |  UX Research Tree Testing |  UX Research Card Sorting |
|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 30-60 min je Interview | 1-2 Tage | 20-45 min |
Participantsdifferent | 5-12 Interviews | Based on research question | Based on research question |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Findability Metrics, Path Analysis, Revised IA | Content groups, Label set, IA hypotheses |
Tagsno overlap | DiscoveryInterviewsValidation | Information architectureNavigationFindability | Information architectureNavigationStructure |
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