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| Criterion |  DevOps Blameless Postmortem |  Operations Root Cause Tree Analysis |  Operations MORT 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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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 | High |
Timedifferent | 30-90 min | 1-3 h | Mehrere Tage bis Wochen |
Participantsdifferent | 3-12 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Cause Tree, Evidence Notes, Countermeasures | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tags1 shared | Site Reliability EngineeringIncidentLearningReliability | Root causeTreeIncidentQuality | Root causeSafetySystemicIncident |
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