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| Criterion |  UX Research Card Sorting |  UX Research Usability Testing |  Product Discovery Solution Interview |  Innovation Design Sprint |
|---|---|---|---|---|
Purposedifferent | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | 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 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 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 | Low | Medium | Medium | High |
Timedifferent | 20-45 min | 1-2 h je Session | 30-60 min je Interview | 4-5 Tage |
Participantsdifferent | Based on research question | Based on research question | 5-10 Interviews | 5-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Content groups, Label set, IA hypotheses | Usability Issues, Severity List, Recommendations | Solution Feedback, Objection List, Validation Notes | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | Information architectureNavigationStructure | ValidationUXPrototype | ValidationInterviewsPrototype | Design sprintPrototypeValidationInnovation |