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| Criterion |  Operations Causal Factor Analysis |  Systems Thinking Current Reality Tree |  Operations Root Cause Tree Analysis |
|---|---|---|---|
Purposedifferent | 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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | High | High | Medium |
Timedifferent | 2-6 h | 2-6 h | 1-3 h |
Participantsdifferent | 3-10 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Current Reality Tree, Core Problems, Intervention Ideas | Cause Tree, Evidence Notes, Countermeasures |
Tags1 shared | CausalityIncidentRoot causeTimeline | Systems thinkingRoot causeConstraintsCausality | Root causeTreeIncidentQuality |
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