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| Criterion |  Product Discovery Problem Interview |  UX Research First-click Testing |  Innovation Design Thinking |  UX Research Usability Testing |
|---|---|---|---|---|
Purposedifferent | 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 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. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 | High | Medium |
Timedifferent | 30-60 min je Interview | 1-2 Tage | 1 Tag bis mehrere Wochen | 1-2 h je Session |
Participantsdifferent | 5-12 Interviews | 10-30 | 4-10 | Based on research question |
Formatdifferent | Workshop + async | Async | Workshop | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Click Heatmap, Success Rate, Design Recommendations | Problem Statement, Prototype, Test Learnings | Usability Issues, Severity List, Recommendations |
Tagsno overlap | DiscoveryInterviewsValidation | UXNavigationFindabilityValidation | InnovationPrototypeResearch | ValidationUXPrototype |