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| Criterion |  Operations Gemba Walk |  UX Research Card Sorting |  UX Research First-click Testing |  Innovation Lean Startup |
|---|---|---|---|---|
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 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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 30-120 min | 20-45 min | 1-2 Tage | Wochen bis Monate je Lernzyklus |
Participantsdifferent | 2-6 | Based on research question | 10-30 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Content groups, Label set, IA hypotheses | Click Heatmap, Success Rate, Design Recommendations | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision |
Tagsno overlap | LeanObservationProcessOperations | Information architectureNavigationStructure | UXNavigationFindabilityValidation | LeanStartupValidationMVP |