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| Criterion |  Systems Thinking Soft Systems Methodology |  Operations Change Analysis |  Operations Causal Factor Analysis |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | Soft Systems Methodology helps explore unclear or politically charged problems systematically. Instead of forcing a quick answer, the method builds a shared understanding of perspectives and room for action. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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. | 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 | High | Medium | High | Low |
Timedifferent | 0.5-3 Tage | 45-120 min | 2-6 h | 15-30 min |
Participantsdifferent | 5-15 | 2-6 | 3-10 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Root cause notes, Countermeasures |
Tagsno overlap | Soft systemsComplexitySensemakingSystems thinking | ChangeRoot causeTroubleshootingComparison | CausalityIncidentRoot causeTimeline | Root causeIncidentLeanProblem solving |