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| Criterion |  UX Research Usability Testing |  Product Discovery Solution Interview |  UX Research Affinity Diagramming |
|---|---|---|---|
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 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. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-2 h je Session | 30-60 min je Interview | 45–90 min |
Participantsdifferent | Based on research question | 5-10 Interviews | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Usability Issues, Severity List, Recommendations | Solution Feedback, Objection List, Validation Notes | Theme clusters, Insight statements, Opportunity areas |
Tagsno overlap | ValidationUXPrototype | ValidationInterviewsPrototype | SynthesisQualitativeRoot cause |
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