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| Criterion |  Systems Thinking Current Reality Tree |  Operations Fishbone Diagram |  Systems Thinking CATWOE Analysis |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. | 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. |
Complexitydifferent | High | Low | Medium | High |
Timedifferent | 2-6 h | 30-60 min | 45-90 min | 1-6 Wochen |
Participantsdifferent | 3-8 | 2-8 | 3-8 | 4-10 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Current Reality Tree, Core Problems, Intervention Ideas | Fishbone Diagram, Cause Categories, Investigation Backlog | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Systems thinkingRoot causeConstraintsCausality | Root causeQualityOperations | Systems thinkingFramingStakeholders | QualityProblem solvingRoot cause |