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| Criterion |  UX Research Tree Testing |  Operations MORT Analysis |  UX Research Card Sorting |
|---|---|---|---|
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. | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. |
Complexitydifferent | Medium | High | Low |
Timedifferent | 1-2 Tage | Mehrere Tage bis Wochen | 20-45 min |
Participantsdifferent | Based on research question | 2-6 | Based on research question |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Content groups, Label set, IA hypotheses |
Tagsno overlap | Information architectureNavigationFindability | Root causeSafetySystemicIncident | Information architectureNavigationStructure |
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