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| Criterion |  Innovation Design Thinking |  UX Research Tree Testing |  Product Discovery Solution Interview |
|---|---|---|---|
Purposedifferent | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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. | 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. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | 1-2 Tage | 30-60 min je Interview |
Participantsdifferent | 4-10 | Based on research question | 5-10 Interviews |
Formatdifferent | Workshop | Async | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Findability Metrics, Path Analysis, Revised IA | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | InnovationPrototypeResearch | Information architectureNavigationFindability | ValidationInterviewsPrototype |
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