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| Criterion |  Operations PDCA Cycle |  Operations Barrier Analysis |  Operations Fault Tree Analysis |
|---|---|---|---|
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. | 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. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 1 h bis mehrere Wochen | 2-4 h | 2-6 h |
Participantsdifferent | 1-8 | 2-6 | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | Continuous improvementLeanExperiments | Root causeSafetyIncident | RiskRoot causeSafety |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
