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| Criterion |  UX Design Lean UX Canvas |  Operations MORT Analysis |  Operations Causal Factor Analysis |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | The Lean UX Canvas helps clarify user behavior, touchpoints, and concept decisions. It makes assumptions and desired outcomes visible and captures the result as a completed canvas, hypothesis list, and first experiment. | 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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | Medium | High | High | High |
Timedifferent | 2-3 h | Mehrere Tage bis Wochen | 2-6 h | 2-6 h |
Participantsdifferent | 3-8 | 2-6 | 3-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Completed Lean UX Canvas, Hypothesis list, First experiment | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | CanvasHypothesisOutcomesDiscovery | Root causeSafetySystemicIncident | CausalityIncidentRoot causeTimeline | Systems thinkingRoot causeConstraintsCausality |