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| Criterion |  Innovation Design Thinking |  UX Research Card Sorting |  UX Research First-click Testing |  UX Research Usability Testing |
|---|---|---|---|---|
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 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 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. | 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 | High | Low | Low | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | 20-45 min | 1-2 Tage | 1-2 h je Session |
Participantsdifferent | 4-10 | Based on research question | 10-30 | Based on research question |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Content groups, Label set, IA hypotheses | Click Heatmap, Success Rate, Design Recommendations | Usability Issues, Severity List, Recommendations |
Tagsno overlap | InnovationPrototypeResearch | Information architectureNavigationStructure | UXNavigationFindabilityValidation | ValidationUXPrototype |