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| Criterion |  Operations RACI Matrix |  DevOps ChatOps |  DevOps Blameless Postmortem |  Operations After-Action Review |
|---|---|---|---|---|
Purposedifferent | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. | 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 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. | 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 45-90 min | Ongoing | 30-90 min | 20-45 min |
Participantsdifferent | 2-8 | 2-20 | 3-12 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | RACI Matrix, Responsibility Map, Decision Notes | Chat Transcript, Action Log, Automations | Postmortem Doc, Action Items, Timeline | Lessons learned, Action items, Event summary |
Tagsno overlap | RolesResponsibilityGovernanceOperations | CollaborationEngineeringIncident | Site Reliability EngineeringIncidentLearningReliability | LearningOperationsImprovement |