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| Criterion |  DevOps Blameless Postmortem |  Knowledge Modeling Teach-back |  DevOps Incident Timeline 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. | 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 an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 30-90 min | 5-20 min | 60-180 min |
Participantsdifferent | 3-12 | 2-8 | 3-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Understanding Check, Clarification Notes, Learning Gaps | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | LearningUnderstandingCommunication | IncidentTimelineSite Reliability Engineering |
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