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| Criterion |  DevOps Blameless Postmortem |  Operations Root Cause Analysis |  Facilitation Barcamp |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | 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 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. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-90 min | 1-4 h | Halber Tag bis 2 Tage | 2-4 h |
Participantsdifferent | 3-12 | 3-8 | 15-200 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Session Board, Session Notes, Community Learnings | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Root causeProblem solvingQualityIncident | FacilitationLarge groupLearning | Root causeSafetyIncident |