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| Criterion |  Operations Barrier Analysis |  Knowledge Modeling Peer Instruction |  DevOps Blameless Postmortem |  Operations MORT Analysis |
|---|---|---|---|---|
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. | Peer Instruction uses group thinking to clarify difficult terms or concepts faster. The method combines individual reflection with social correction and shared precision. | 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. | 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. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | 2-4 h | 10-20 min je Frage | 30-90 min | Mehrere Tage bis Wochen |
Participantsdifferent | 2-6 | 6-50 | 3-12 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Concept Questions, Vote Results, Learning Notes | Postmortem Doc, Action Items, Timeline | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | Root causeSafetyIncident | LearningDialogueFacilitation | Site Reliability EngineeringIncidentLearningReliability | Root causeSafetySystemicIncident |