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| Criterion |  Operations A3 Problem Solving |  Operations Root Cause Analysis |  Decision Making Decision Matrix |
|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 45-90 min | 1-4 h | 45-90 min |
Participantsdifferent | 2-5 | 3-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Decision Matrix, Scoring Rationale, Selected Option |
Tagsno overlap | LeanProblem solvingCoachingOperations | Root causeProblem solvingQualityIncident | DecisionCriteriaScoringTradeoffs |
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