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| Criterion |  Operations After-Action Review |  Business Strategy Strategy Execution Loop |  DevOps Blameless Postmortem |  DevOps Game Day |
|---|---|---|---|---|
Purposedifferent | 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. | The Strategy Execution Loop helps avoid treating strategy as a one-off document. It makes visible how strategic decisions are turned into objectives, initiatives, operational work, measurement, and learning. | 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. | In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic. |
Complexitydifferent | Low | High | Medium | High |
Timedifferent | 20-45 min | Initial 3-6 h, then monthly or quarterly reviews | 30-90 min | Halber Tag |
Participantsdifferent | 3-12 | 5-12 | 3-12 | 5-20 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Lessons learned, Action items, Event summary | Execution Loop, Review Cadence, Strategic Learning Log | Postmortem Doc, Action Items, Timeline | Simulation Notes, Gaps List, Updated Runbooks |
Tagsno overlap | LearningOperationsImprovement | ExecutionCadenceLearningGovernance | Site Reliability EngineeringIncidentLearningReliability | ResilienceOperationsIncident |