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| Criterion |  Product Discovery Solution Interview |  UX Research First-click Testing |  Product Discovery Problem Interview |  UX Research Usability Testing |
|---|---|---|---|---|
Purposedifferent | 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 users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | 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. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 30-60 min je Interview | 1-2 Tage | 30-60 min je Interview | 1-2 h je Session |
Participantsdifferent | 5-10 Interviews | 10-30 | 5-12 Interviews | Based on research question |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Click Heatmap, Success Rate, Design Recommendations | Problem Evidence, Risk Notes, Customer Segments | Usability Issues, Severity List, Recommendations |
Tags1 shared | ValidationInterviewsPrototype | UXNavigationFindabilityValidation | DiscoveryInterviewsValidation | ValidationUXPrototype |