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| Criterion |  Operations Runbook |  Operations ABC Analysis |  Operations After-Action Review |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | For recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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 | Low | Low | Medium |
Timedifferent | 20-60 min | 30-60 min | 20-45 min | 30-90 min |
Participantsdifferent | 1-4 | 1-5 | 3-12 | 3-12 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | Runbook, Checklist, Escalation Path | ABC Classification, Focus Rules, Control List | Lessons learned, Action items, Event summary | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | OperationsReliabilityDocumentation | PrioritizationOperationsPortfolio | LearningOperationsImprovement | Site Reliability EngineeringIncidentLearningReliability |