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| Criterion |  Product Discovery Solution Interview |  UX Research Usability Testing |  Innovation TRIZ |  Innovation Design Sprint |
|---|---|---|---|---|
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 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. | 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 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. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | 30-60 min je Interview | 1-2 h je Session | 1-4 h | 4-5 Tage |
Participantsdifferent | 5-10 Interviews | Based on research question | 2-8 | 5-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Usability Issues, Severity List, Recommendations | Contradiction Statement, Inventive Principles, Solution Concepts | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ValidationInterviewsPrototype | ValidationUXPrototype | InnovationProblem solvingContradictionsCreativity | Design sprintPrototypeValidationInnovation |