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| Criterion |  Systems Thinking Causal Loop Diagram |  Operations 5 Whys |  Operations 8D Problem Solving |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | A Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations. | 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. | 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. | 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. |
Complexitydifferent | Medium | Low | High | High |
Timedifferent | 1-3 h | 15-30 min | 1-6 Wochen | 2-6 h |
Participantsdifferent | 2-8 | 2-6 | 4-10 | 3-8 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Causal Loop Diagram, Feedback Notes, Leverage Points | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | FeedbackSystems thinkingCausalityDynamics | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause | Systems thinkingRoot causeConstraintsCausality |