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| Criterion |  Operations 8D Problem Solving |  Operations Root Cause Analysis |  Facilitation World Café |  Facilitation Fishbowl Discussion |
|---|---|---|---|---|
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. | 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. | 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. | 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 | High | Medium | Medium | Medium |
Timedifferent | 1-6 Wochen | 1-4 h | 60-180 min | 45-90 min |
Participantsdifferent | 4-10 | 3-8 | 12-100+ | 8-80 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Table Notes, Emergent Themes, Shared Questions | Discussion Insights, Observed Tensions, Follow-up Questions |
Tagsno overlap | QualityProblem solvingRoot cause | Root causeProblem solvingQualityIncident | FacilitationDialogueLarge groupSensemaking | FacilitationDialogueLarge group |