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| Criterion |  Facilitation World Café |  Operations A3 Problem Solving |  Operations 5 Whys |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | 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 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. | 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 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 | Medium | Medium | Low | Medium |
Timedifferent | 60-180 min | 45-90 min | 15-30 min | 1-4 h |
Participantsdifferent | 12-100+ | 2-5 | 2-6 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Table Notes, Emergent Themes, Shared Questions | A3 Report, Action Plan, Root Cause Analysis | Root cause notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | FacilitationDialogueLarge groupSensemaking | LeanProblem solvingCoachingOperations | Root causeIncidentLeanProblem solving | Root causeProblem solvingQualityIncident |