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| Criterion |  DevOps Game Day |  Business Strategy Strategy Execution Loop |  Operations After-Action Review |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | 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. | 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 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 | High | High | Low | Medium |
Timedifferent | Halber Tag | Initial 3-6 h, then monthly or quarterly reviews | 20-45 min | 30-90 min |
Participantsdifferent | 5-20 | 5-12 | 3-12 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Execution Loop, Review Cadence, Strategic Learning Log | Lessons learned, Action items, Event summary | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | ResilienceOperationsIncident | ExecutionCadenceLearningGovernance | LearningOperationsImprovement | Site Reliability EngineeringIncidentLearningReliability |