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| Criterion |  UX Research Usability Testing |  Operations A3 Problem Solving |  Operations MORT Analysis |
|---|---|---|---|
Purposedifferent | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up 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. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 1-2 h je Session | 45-90 min | Mehrere Tage bis Wochen |
Participantsdifferent | Based on research question | 2-5 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | A3 Report, Action Plan, Root Cause Analysis | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | ValidationUXPrototype | LeanProblem solvingCoachingOperations | Root causeSafetySystemicIncident |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
