View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations A3 Problem Solving |  Operations Gemba Walk |  UX Research First-click Testing |  Operations 5 Whys |
|---|---|---|---|---|
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 a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 45-90 min | 30-120 min | 1-2 Tage | 15-30 min |
Participantsdifferent | 2-5 | 2-6 | 10-30 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Observation Notes, Improvement Ideas | Click Heatmap, Success Rate, Design Recommendations | Root cause notes, Countermeasures |
Tagsno overlap | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations | UXNavigationFindabilityValidation | Root causeIncidentLeanProblem solving |