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| Criterion |  UX Research Card Sorting |  Innovation Design Sprint |  Product Discovery Solution Interview |  UX Research Tree Testing |
|---|---|---|---|---|
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 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 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 navigation exists but search paths still fail, tree testing checks findability without visual distraction. The method shows whether labels, levels, and paths really lead to the intended destination. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 20-45 min | 4-5 Tage | 30-60 min je Interview | 1-2 Tage |
Participantsdifferent | Based on research question | 5-8 | 5-10 Interviews | Based on research question |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Content groups, Label set, IA hypotheses | Prototype, Test Findings, Decision Rationale | Solution Feedback, Objection List, Validation Notes | Findability Metrics, Path Analysis, Revised IA |
Tagsno overlap | Information architectureNavigationStructure | Design sprintPrototypeValidationInnovation | ValidationInterviewsPrototype | Information architectureNavigationFindability |