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| Criterion |  UX Research Card Sorting |  Product Discovery Problem Interview |  Product Discovery Solution Interview |
|---|---|---|---|
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 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 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. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 20-45 min | 30-60 min je Interview | 30-60 min je Interview |
Participantsdifferent | Based on research question | 5-12 Interviews | 5-10 Interviews |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Problem Evidence, Risk Notes, Customer Segments | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | Information architectureNavigationStructure | DiscoveryInterviewsValidation | ValidationInterviewsPrototype |
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