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| Criterion |  Operations A3 Problem Solving |  Operations Gemba Walk |  UX Research First-click Testing |  Innovation Lean Startup |
|---|---|---|---|---|
Purposedifferent | 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. | 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 | Medium | Low | Low | Medium |
Timedifferent | 45-90 min | 30-120 min | 1-2 Tage | Wochen bis Monate je Lernzyklus |
Participantsdifferent | 2-5 | 2-6 | 10-30 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Observation Notes, Improvement Ideas | Click Heatmap, Success Rate, Design Recommendations | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision |
Tagsno overlap | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations | UXNavigationFindabilityValidation | LeanStartupValidationMVP |