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| Criterion |  Product Discovery Solution Interview |  Decision Making Assumption Surfacing |  UX Research Usability Testing |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 30-60 min je Interview | 45-90 min | 1-2 h je Session | 45-60 min |
Participantsdifferent | 5-10 Interviews | 2-8 | Based on research question | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Assumption List, Critical Assumptions, Learning Plan | Usability Issues, Severity List, Recommendations | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ValidationInterviewsPrototype | AssumptionsRiskDecisionDiscovery | ValidationUXPrototype | AssumptionsRiskExperimentsValidation |