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| Criterion |  Operations Barrier Analysis |  Operations MORT Analysis |  UX Research Card Sorting |
|---|---|---|---|
Purposedifferent | 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. | 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 | 2-4 h | Mehrere Tage bis Wochen | 20-45 min |
Participantsdifferent | 2-6 | 2-6 | Based on research question |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Content groups, Label set, IA hypotheses |
Tagsno overlap | Root causeSafetyIncident | Root causeSafetySystemicIncident | Information architectureNavigationStructure |
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