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| Criterion |  Operations Fault Tree Analysis |  Knowledge Modeling Peer Instruction |  DevOps Blameless Postmortem |  Operations MORT Analysis |
|---|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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 | High | Medium | Medium | High |
Timedifferent | 2-6 h | 10-20 min je Frage | 30-90 min | Mehrere Tage bis Wochen |
Participantsdifferent | 3-8 | 6-50 | 3-12 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Concept Questions, Vote Results, Learning Notes | Postmortem Doc, Action Items, Timeline | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | RiskRoot causeSafety | LearningDialogueFacilitation | Site Reliability EngineeringIncidentLearningReliability | Root causeSafetySystemicIncident |