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| Criterion |  Operations 8D Problem Solving |  Operations Change Analysis |  Facilitation 3-Circle Venn Diagram |
|---|---|---|---|
Purposedifferent | 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. | 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 | High | Medium | Low |
Timedifferent | 1-6 Wochen | 45-120 min | 15-45 min |
Participantsdifferent | 4-10 | 2-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Venn Diagram, Overlap Notes, Differentiators |
Tagsno overlap | QualityProblem solvingRoot cause | ChangeRoot causeTroubleshootingComparison | ComparisonFacilitationAlignment |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
