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| Criterion |  Operations Root Cause Tree Analysis |  Facilitation World Café |  Operations 8D Problem Solving |  Facilitation Fishbowl Discussion |
|---|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | When a group needs to connect many viewpoints in a short time, World Café creates a calm alternation between closeness and rotation. It sets thinking in motion without forcing the conversation into full-plenary rigidity. | 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 a controversial topic needs depth and discipline at the same time, Fishbowl Discussion makes the structure of the conversation transparent. The format keeps the core small enough for real dialogue and open enough for controlled turnover. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 1-3 h | 60-180 min | 1-6 Wochen | 45-90 min |
Participantsdifferent | 2-8 | 12-100+ | 4-10 | 8-80 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Table Notes, Emergent Themes, Shared Questions | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Discussion Insights, Observed Tensions, Follow-up Questions |
Tagsno overlap | Root causeTreeIncidentQuality | FacilitationDialogueLarge groupSensemaking | QualityProblem solvingRoot cause | FacilitationDialogueLarge group |