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| Criterion |  Operations A3 Problem Solving |  Operations Change Analysis |  Facilitation 3-Circle Venn Diagram |
|---|---|---|---|
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. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | When three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 45-90 min | 45-120 min | 15-45 min |
Participantsdifferent | 2-5 | 2-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Venn Diagram, Overlap Notes, Differentiators |
Tagsno overlap | LeanProblem solvingCoachingOperations | ChangeRoot causeTroubleshootingComparison | ComparisonFacilitationAlignment |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
