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| Criterion |  Knowledge Modeling Teach-back |  Operations Fault Tree Analysis |  DevOps Blameless Postmortem |
|---|---|---|---|
Purposedifferent | Teach-back checks whether an explanation actually got through to the other person. The method makes misunderstandings visible early and strengthens shared understanding in advisory and learning situations. | 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. | 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 | Low | High | Medium |
Timedifferent | 5-20 min | 2-6 h | 30-90 min |
Participantsdifferent | 2-8 | 3-8 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Understanding Check, Clarification Notes, Learning Gaps | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | LearningUnderstandingCommunication | RiskRoot causeSafety | Site Reliability EngineeringIncidentLearningReliability |
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