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| Criterion |  Facilitation Lean Coffee |  Operations 8D Problem Solving |  Facilitation 3-Circle Venn Diagram |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | When a group without a fixed agenda needs to get into useful conversations quickly, Lean Coffee structures the start around interests rather than a presentation. The group itself negotiates which topics get time first and which wait. | 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. | 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. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 30-90 min | 1-6 Wochen | 15-45 min | 15-30 min |
Participantsdifferent | 3-20 | 4-10 | 2-8 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Prioritized Topics, Discussion Notes, Action Items | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Venn Diagram, Overlap Notes, Differentiators | Root cause notes, Countermeasures |
Tagsno overlap | FacilitationAutonomyDialogue | QualityProblem solvingRoot cause | ComparisonFacilitationAlignment | Root causeIncidentLeanProblem solving |