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| Criterion |  Operations Barrier Analysis |  Operations MORT Analysis |  DevOps Blameless Postmortem |
|---|---|---|---|
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. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | 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 | Medium | High | Medium |
Timedifferent | 2-4 h | Mehrere Tage bis Wochen | 30-90 min |
Participantsdifferent | 2-6 | 2-6 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Postmortem Doc, Action Items, Timeline |
Tags1 shared | Root causeSafetyIncident | Root causeSafetySystemicIncident | Site Reliability EngineeringIncidentLearningReliability |
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