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| Criterion |  UX Research Usability Testing |  UX Research Affinity Diagramming |  Product Discovery Solution Interview |
|---|---|---|---|
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. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | 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 | Medium | Low | Medium |
Timedifferent | 1-2 h je Session | 45–90 min | 30-60 min je Interview |
Participantsdifferent | Based on research question | 3-10 | 5-10 Interviews |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Theme clusters, Insight statements, Opportunity areas | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | ValidationUXPrototype | SynthesisQualitativeRoot cause | ValidationInterviewsPrototype |
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