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| Criterion |  UX Research Card Sorting |  UX Research Usability Testing |  Decision Making Assumption Surfacing |
|---|---|---|---|
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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 20-45 min | 1-2 h je Session | 45-90 min |
Participantsdifferent | Based on research question | Based on research question | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Usability Issues, Severity List, Recommendations | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | Information architectureNavigationStructure | ValidationUXPrototype | AssumptionsRiskDecisionDiscovery |
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