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| Criterion |  UX Research Affinity Diagramming |  UX Research First-click Testing |  Operations MORT Analysis |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | 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 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 single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Low | Low | High | Low |
Timedifferent | 45–90 min | 1-2 Tage | Mehrere Tage bis Wochen | 15-30 min |
Participantsdifferent | 3-10 | 10-30 | 2-6 | 2-6 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop |
Outputdifferent | Theme clusters, Insight statements, Opportunity areas | Click Heatmap, Success Rate, Design Recommendations | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Root cause notes, Countermeasures |
Tagsno overlap | SynthesisQualitativeRoot cause | UXNavigationFindabilityValidation | Root causeSafetySystemicIncident | Root causeIncidentLeanProblem solving |