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| Criterion |  Operations Root Cause Tree Analysis |  Operations 8D Problem Solving |  Operations Causal Factor Analysis |
|---|---|---|---|
Purposedifferent | 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. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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. |
Complexitydifferent | Medium | High | High |
Timedifferent | 1-3 h | 1-6 Wochen | 2-6 h |
Participantsdifferent | 2-8 | 4-10 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tags1 shared | Root causeTreeIncidentQuality | QualityProblem solvingRoot cause | CausalityIncidentRoot causeTimeline |
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