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| Criterion |  Product Discovery Solution Interview |  Innovation TRIZ |  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 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 | Medium |
Timedifferent | 30-60 min je Interview | 1-4 h | 1-2 h je Session |
Participantsdifferent | 5-10 Interviews | 2-8 | Based on research question |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Contradiction Statement, Inventive Principles, Solution Concepts | Usability Issues, Severity List, Recommendations |
Tagsno overlap | ValidationInterviewsPrototype | InnovationProblem solvingContradictionsCreativity | ValidationUXPrototype |
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