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| Criterion |  UX Research Usability Testing |  Operations A3 Problem Solving |  Operations Gemba Walk |
|---|---|---|---|
Purposedifferent | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-2 h je Session | 45-90 min | 30-120 min |
Participantsdifferent | Based on research question | 2-5 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Usability Issues, Severity List, Recommendations | A3 Report, Action Plan, Root Cause Analysis | Observation Notes, Improvement Ideas |
Tagsno overlap | ValidationUXPrototype | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations |
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