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| Criterion |  UX Research First-click Testing |  Operations Root Cause Tree Analysis |  Operations MORT 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 a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 1-2 Tage | 1-3 h | Mehrere Tage bis Wochen |
Participantsdifferent | 10-30 | 2-8 | 2-6 |
Formatdifferent | Async | Workshop | Workshop + async |
Outputdifferent | Click Heatmap, Success Rate, Design Recommendations | Cause Tree, Evidence Notes, Countermeasures | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | UXNavigationFindabilityValidation | Root causeTreeIncidentQuality | Root causeSafetySystemicIncident |
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