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| Criterion |  Product Discovery Solution Interview |  Innovation TRIZ |  UX Research First-click Testing |  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. | For technical contradictions or trade-offs, the method looks for solutions that resolve opposing requirements at the same time. It translates limits into an explicit picture of conflict that becomes workable. This produces not just compromises but more elegant principles. | 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 | 1-4 h | 1-2 Tage | 1-2 h je Session |
Participantsdifferent | 5-10 Interviews | 2-8 | 10-30 | Based on research question |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Contradiction Statement, Inventive Principles, Solution Concepts | Click Heatmap, Success Rate, Design Recommendations | Usability Issues, Severity List, Recommendations |
Tagsno overlap | ValidationInterviewsPrototype | InnovationProblem solvingContradictionsCreativity | UXNavigationFindabilityValidation | ValidationUXPrototype |