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| Criterion |  Knowledge Modeling Teach-back |  DevOps Incident Timeline Analysis |  Operations After-Action Review |  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 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. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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 | Medium | Low | Medium |
Timedifferent | 5-20 min | 60-180 min | 20-45 min | 30-90 min |
Participantsdifferent | 2-8 | 3-10 | 3-12 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Understanding Check, Clarification Notes, Learning Gaps | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Lessons learned, Action items, Event summary | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | LearningUnderstandingCommunication | IncidentTimelineSite Reliability Engineering | LearningOperationsImprovement | Site Reliability EngineeringIncidentLearningReliability |