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| Criterion |  UX Research Tree Testing |  Operations MORT Analysis |  Operations Barrier Analysis |
|---|---|---|---|
Purposedifferent | When a navigation exists but search paths still fail, tree testing checks findability without visual distraction. The method shows whether labels, levels, and paths really lead to the intended destination. | 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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Medium | High | Medium |
Timedifferent | 1-2 Tage | Mehrere Tage bis Wochen | 2-4 h |
Participantsdifferent | Based on research question | 2-6 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Information architectureNavigationFindability | Root causeSafetySystemicIncident | Root causeSafetyIncident |
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