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| Criterion |  Operations Barrier Analysis |  Facilitation Lean Coffee |  Operations A3 Problem Solving |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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 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. | 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 | Low | Medium | Medium |
Timedifferent | 2-4 h | 30-90 min | 45-90 min | 1-4 h |
Participantsdifferent | 2-6 | 3-20 | 2-5 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Prioritized Topics, Discussion Notes, Action Items | A3 Report, Action Plan, Root Cause Analysis | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | Root causeSafetyIncident | FacilitationAutonomyDialogue | LeanProblem solvingCoachingOperations | Root causeProblem solvingQualityIncident |