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| Criterion |  Facilitation Fishbowl Discussion |  Operations Root Cause Analysis |  Operations 5 Whys |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 45-90 min | 1-4 h | 15-30 min | 45-90 min |
Participantsdifferent | 8-80 | 3-8 | 2-6 | 2-5 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Discussion Insights, Observed Tensions, Follow-up Questions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Root cause notes, Countermeasures | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | FacilitationDialogueLarge group | Root causeProblem solvingQualityIncident | Root causeIncidentLeanProblem solving | LeanProblem solvingCoachingOperations |