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| Criterion |  Product Discovery Solution Interview |  UX Research Card Sorting |  Innovation Design Thinking |  UX Research First-click 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 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. | 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 users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 30-60 min je Interview | 20-45 min | 1 Tag bis mehrere Wochen | 1-2 Tage |
Participantsdifferent | 5-10 Interviews | Based on research question | 4-10 | 10-30 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Content groups, Label set, IA hypotheses | Problem Statement, Prototype, Test Learnings | Click Heatmap, Success Rate, Design Recommendations |
Tagsno overlap | ValidationInterviewsPrototype | Information architectureNavigationStructure | InnovationPrototypeResearch | UXNavigationFindabilityValidation |