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| Criterion |  Operations Fault Tree Analysis |  Systems Thinking Current Reality Tree |  Operations 8D Problem Solving |
|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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 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. |
Complexitysame | High | High | High |
Timedifferent | 2-6 h | 2-6 h | 1-6 Wochen |
Participantsdifferent | 3-8 | 3-8 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Current Reality Tree, Core Problems, Intervention Ideas | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tags1 shared | RiskRoot causeSafety | Systems thinkingRoot causeConstraintsCausality | QualityProblem solvingRoot cause |
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