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| Criterion |  Operations Barrier Analysis |  Knowledge Modeling Feynman Technique |  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. | The Feynman Technique checks understanding by explaining a topic so that it stays easy for others to understand. It makes knowledge gaps visible before they become costly in everyday work. | 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 | Low | High | Medium |
Timedifferent | 2-4 h | 20-60 min | Mehrere Tage bis Wochen | 30-90 min |
Participantsdifferent | 2-6 | 1 | 2-6 | 3-12 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Plain-language Explanation, Knowledge Gaps, Study Notes | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | Root causeSafetyIncident | LearningKnowledgeUnderstanding | Root causeSafetySystemicIncident | Site Reliability EngineeringIncidentLearningReliability |