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| Criterion |  UX Research First-click Testing |  Operations 8D Problem Solving |  UX Research Empathy Mapping |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | 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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | When a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Low | High | Low | Medium |
Timedifferent | 1-2 Tage | 1-6 Wochen | 30–60 min | 1-4 h |
Participantsdifferent | 10-30 | 4-10 | 4-8 | 3-8 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Click Heatmap, Success Rate, Design Recommendations | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Empathy Map, Assumptions List, Research Gaps | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | UXNavigationFindabilityValidation | QualityProblem solvingRoot cause | SynthesisQualitativeWorkshop | Root causeProblem solvingQualityIncident |