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| Criterion |  Operations Change Analysis |  Facilitation Dot Voting |  Operations 8D Problem Solving |  Facilitation 3-Circle Venn Diagram |
|---|---|---|---|---|
Purposedifferent | 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 a workshop has produced too many options and the group needs to condense quickly, dot voting makes preferences visible in a short time. It bundles individual votes into a solid signal for the next selection. | 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. | 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 | Low | High | Low |
Timedifferent | 45-120 min | 5-15 min | 1-6 Wochen | 15-45 min |
Participantsdifferent | 2-6 | 3-20 | 4-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Ranked list, Consensus signal, Shortlist | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Venn Diagram, Overlap Notes, Differentiators |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | FacilitationVotingConsensusPrioritization | QualityProblem solvingRoot cause | ComparisonFacilitationAlignment |