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| Criterion |  Operations Barrier Analysis |  Facilitation Lean Coffee |  Operations 5 Whys |
|---|---|---|---|
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 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. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 2-4 h | 30-90 min | 15-30 min |
Participantsdifferent | 2-6 | 3-20 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Prioritized Topics, Discussion Notes, Action Items | Root cause notes, Countermeasures |
Tagsno overlap | Root causeSafetyIncident | FacilitationAutonomyDialogue | Root causeIncidentLeanProblem solving |
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