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| Criterion |  Operations 8D Problem Solving |  Systems Thinking System Dynamics Simulation |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | 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. | System Dynamics Simulation makes assumptions about time, delay, and feedback testable through experiments. It draws relationships, patterns, and feedback loops. The result is captured as a simulation model and scenario reports. | 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. |
Complexitydifferent | High | High | Low |
Timedifferent | 1-6 Wochen | Mehrere Tage bis Wochen | 15-30 min |
Participantsdifferent | 4-10 | 1-5 Modellierende, Stakeholder asynchron | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Simulation Model, Scenario Reports | Root cause notes, Countermeasures |
Tagsno overlap | QualityProblem solvingRoot cause | Systems thinkingDynamicsSimulationAnalysis | Root causeIncidentLeanProblem solving |
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