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| Criterion |  Operations Fault Tree Analysis |  Facilitation Barcamp |  Operations Barrier Analysis |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | When many people can contribute knowledge and the flow should stay open, Barcamp provides a framework for self-organized sessions. The format channels energy without defining the content too narrowly in advance. | 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. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 2-6 h | Halber Tag bis 2 Tage | 2-4 h | 30-90 min |
Participantsdifferent | 3-8 | 15-200 | 2-6 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Session Board, Session Notes, Community Learnings | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | RiskRoot causeSafety | FacilitationLarge groupLearning | Root causeSafetyIncident | Site Reliability EngineeringIncidentLearningReliability |