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| Criterion |  Operations Root Cause Analysis |  Systems Thinking Stock and Flow Diagram |  Operations 8D Problem Solving |
|---|---|---|---|
Purposedifferent | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | A Stock and Flow Diagram shows how stocks, inflows, and outflows shape a system over time. It is especially suited when growth, delays, or capacity limits determine the dynamics. | 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. |
Complexitydifferent | Medium | High | High |
Timedifferent | 1-4 h | 2-6 h | 1-6 Wochen |
Participantsdifferent | 3-8 | 1-6 | 4-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Stock and Flow Model, Dynamics Notes, Simulation Hypotheses | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Root causeProblem solvingQualityIncident | DynamicsSimulationFeedbackSystems thinking | QualityProblem solvingRoot cause |
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