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| Criterion |  Operations Root Cause Analysis |  Decision Making Decision Tree |  Operations A3 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. | For decisions with follow-on paths and dependencies, a linear comparison is often not enough. A Decision Tree shows how options branch under conditions and which consequences hang on each branch. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-4 h | 30-90 min | 45-90 min |
Participantsdifferent | 3-8 | 1-6 | 2-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Decision Tree, Option Map, Assumption List | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | Root causeProblem solvingQualityIncident | DecisionTreeOptions | LeanProblem solvingCoachingOperations |
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