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| Criterion |  DevOps Blameless Postmortem |  DevOps ChatOps |  Facilitation Fishbowl Discussion |
|---|---|---|---|
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 operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come together. | When a controversial topic needs depth and discipline at the same time, Fishbowl Discussion makes the structure of the conversation transparent. The format keeps the core small enough for real dialogue and open enough for controlled turnover. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-90 min | Ongoing | 45-90 min |
Participantsdifferent | 3-12 | 2-20 | 8-80 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Chat Transcript, Action Log, Automations | Discussion Insights, Observed Tensions, Follow-up Questions |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | CollaborationEngineeringIncident | FacilitationDialogueLarge group |
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