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| Criterion |  Operations Barrier Analysis |  DevOps Blameless Postmortem |  Facilitation Barcamp |  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. | 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. | 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 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 | Medium | Medium | Low |
Timedifferent | 2-4 h | 30-90 min | Halber Tag bis 2 Tage | 15-30 min |
Participantsdifferent | 2-6 | 3-12 | 15-200 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Postmortem Doc, Action Items, Timeline | Session Board, Session Notes, Community Learnings | Root cause notes, Countermeasures |
Tagsno overlap | Root causeSafetyIncident | Site Reliability EngineeringIncidentLearningReliability | FacilitationLarge groupLearning | Root causeIncidentLeanProblem solving |