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| Criterion |  UX Research Usability Testing |  Operations Change Analysis |  UX Research Card Sorting |
|---|---|---|---|
Purposedifferent | 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. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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 | 1-2 h je Session | 45-120 min | 20-45 min |
Participantsdifferent | Based on research question | 2-6 | Based on research question |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Content groups, Label set, IA hypotheses |
Tagsno overlap | ValidationUXPrototype | ChangeRoot causeTroubleshootingComparison | Information architectureNavigationStructure |
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