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| Criterion |  Operations Barrier Analysis |  Systems Thinking Causal Loop Diagram |  Operations 8D Problem Solving |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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 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 | Medium | High | High |
Timedifferent | 2-4 h | 1-3 h | 1-6 Wochen | 2-6 h |
Participantsdifferent | 2-6 | 2-8 | 4-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Causal Loop Diagram, Feedback Notes, Leverage Points | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | Root causeSafetyIncident | FeedbackSystems thinkingCausalityDynamics | QualityProblem solvingRoot cause | Systems thinkingRoot causeConstraintsCausality |