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| Criterion |  Operations PDCA Cycle |  UX Research First-click Testing |  UX Research Card Sorting |  UX Research Tree Testing |
|---|---|---|---|---|
Purposedifferent | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. | 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 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 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 | Low | Low | Medium |
Timedifferent | 1 h bis mehrere Wochen | 1-2 Tage | 20-45 min | 1-2 Tage |
Participantsdifferent | 1-8 | 10-30 | Based on research question | Based on research question |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Click Heatmap, Success Rate, Design Recommendations | Content groups, Label set, IA hypotheses | Findability Metrics, Path Analysis, Revised IA |
Tagsno overlap | Continuous improvementLeanExperiments | UXNavigationFindabilityValidation | Information architectureNavigationStructure | Information architectureNavigationFindability |