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| Criterion |  DevOps ChatOps |  Operations After-Action Review |  Product Strategy DIBB |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | 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 | Low | Medium |
Timedifferent | Ongoing | 20-45 min | 1-2 h | 30-90 min |
Participantsdifferent | 2-20 | 3-12 | 2-8 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Chat Transcript, Action Log, Automations | Lessons learned, Action items, Event summary | DIBB document, Belief list, Bet list, Learning report | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | CollaborationEngineeringIncident | LearningOperationsImprovement | StrategyDecisionAssumptionsHypothesis | Site Reliability EngineeringIncidentLearningReliability |