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| Criterion |  Facilitation 3-Circle Venn Diagram |  Operations Fishbone Diagram |  Operations 8D Problem Solving |
|---|---|---|---|
Purposedifferent | 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | 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 | Low | Low | High |
Timedifferent | 15-45 min | 30-60 min | 1-6 Wochen |
Participantsdifferent | 2-8 | 2-8 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Venn Diagram, Overlap Notes, Differentiators | Fishbone Diagram, Cause Categories, Investigation Backlog | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | ComparisonFacilitationAlignment | Root causeQualityOperations | QualityProblem solvingRoot cause |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
