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| Criterion |  Product Discovery Problem Interview |  Innovation Design Sprint |  UX Research First-click Testing |  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 the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | 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 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 | High | Low | Medium |
Timedifferent | 30-60 min je Interview | 4-5 Tage | 1-2 Tage | 1-2 h je Session |
Participantsdifferent | 5-12 Interviews | 5-8 | 10-30 | Based on research question |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Prototype, Test Findings, Decision Rationale | Click Heatmap, Success Rate, Design Recommendations | Usability Issues, Severity List, Recommendations |
Tags1 shared | DiscoveryInterviewsValidation | Design sprintPrototypeValidationInnovation | UXNavigationFindabilityValidation | ValidationUXPrototype |