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| Criterion |  Operations PDCA Cycle |  Operations Barrier Analysis |  Systems Thinking Current Reality Tree |
|---|---|---|---|
Purposedifferent | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. | 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 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 | Low | Medium | High |
Timedifferent | 1 h bis mehrere Wochen | 2-4 h | 2-6 h |
Participantsdifferent | 1-8 | 2-6 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | Continuous improvementLeanExperiments | Root causeSafetyIncident | Systems thinkingRoot causeConstraintsCausality |
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