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| Criterion |  Facilitation 3-Circle Venn Diagram |  Operations 5 Whys |  Facilitation Alignment Mapping |  Operations Root Cause Analysis |
|---|---|---|---|---|
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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | When several people work toward one goal but hold different mental maps, Alignment Mapping makes the discrepancies visible. It arranges goals, assumptions, and priorities so shared direction becomes verifiable. | 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. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 15-45 min | 15-30 min | 1-2 h | 1-4 h |
Participantsdifferent | 2-8 | 2-6 | 4-12 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Venn Diagram, Overlap Notes, Differentiators | Root cause notes, Countermeasures | Alignment Map, Open Issues, Decision Questions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | ComparisonFacilitationAlignment | Root causeIncidentLeanProblem solving | AlignmentStakeholdersStrategyFacilitation | Root causeProblem solvingQualityIncident |