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| Criterion |  Product Discovery Solution Interview |  UX Research Affinity Diagramming |  Innovation Design Sprint |  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. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | 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 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 | Low | High | Medium |
Timedifferent | 30-60 min je Interview | 45–90 min | 4-5 Tage | 1-2 h je Session |
Participantsdifferent | 5-10 Interviews | 3-10 | 5-8 | Based on research question |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Theme clusters, Insight statements, Opportunity areas | Prototype, Test Findings, Decision Rationale | Usability Issues, Severity List, Recommendations |
Tagsno overlap | ValidationInterviewsPrototype | SynthesisQualitativeRoot cause | Design sprintPrototypeValidationInnovation | ValidationUXPrototype |