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| Criterion |  Operations Gemba Walk |  UX Research First-click Testing |  UX Research Tree Testing |  UX Research Card Sorting |
|---|---|---|---|---|
Purposedifferent | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | 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 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 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. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 30-120 min | 1-2 Tage | 1-2 Tage | 20-45 min |
Participantsdifferent | 2-6 | 10-30 | Based on research question | Based on research question |
Formatdifferent | Workshop | Async | Async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Click Heatmap, Success Rate, Design Recommendations | Findability Metrics, Path Analysis, Revised IA | Content groups, Label set, IA hypotheses |
Tagsno overlap | LeanObservationProcessOperations | UXNavigationFindabilityValidation | Information architectureNavigationFindability | Information architectureNavigationStructure |