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| Criterion |  UX Research Card Sorting |  UX Research Usability Testing |  Product Discovery Test Card |
|---|---|---|---|
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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 20-45 min | 1-2 h je Session | 20-35 min |
Participantsdifferent | Based on research question | Based on research question | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Usability Issues, Severity List, Recommendations | Test Card with a pre-set threshold |
Tagsno overlap | Information architectureNavigationStructure | ValidationUXPrototype | ExperimentsValidationDiscoveryHypothesis |
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