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| Criterion |  Operations Runbook |  DevOps Blameless Postmortem |  Product Strategy Counter Metrics |  Operations After-Action Review |
|---|---|---|---|---|
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. | 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. | When a headline metric could mask side effects, it adds guardrail signals against unwanted outcomes. It connects customer value, product logic, and decision priorities. The result is captured as a counter-metric list and guardrail definitions. | 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 | Low | Low |
Timedifferent | 20-60 min | 30-90 min | 30-60 min | 20-45 min |
Participantsdifferent | 1-4 | 3-12 | 2-6 | 3-12 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Runbook, Checklist, Escalation Path | Postmortem Doc, Action Items, Timeline | Counter Metric List, Guardrail Definitions | Lessons learned, Action items, Event summary |
Tagsno overlap | OperationsReliabilityDocumentation | Site Reliability EngineeringIncidentLearningReliability | MetricsMeasurementStrategyExperiments | LearningOperationsImprovement |