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| Criterion |  DevOps Incident Timeline Analysis |  Agile Starfish Retrospective |  DevOps Blameless Postmortem |
|---|---|---|---|
Purposedifferent | 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. | When improvement options need to be sorted more finely than just start and stop, it brings observations into clear kinds of action. This makes visible what should be done more, less, newly, or continued. | 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 | Medium | Low | Medium |
Timedifferent | 60-180 min | 45-90 min | 30-90 min |
Participantsdifferent | 3-10 | 4-12 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Starfish Board, Practice Changes, Experiments | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | IncidentTimelineSite Reliability Engineering | RetrospectiveImprovementExperimentsTeam | Site Reliability EngineeringIncidentLearningReliability |
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