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| Criterion |  Operations After-Action Review |  Systems Thinking Futures Wheel |  DevOps Game Day |  DevOps Blameless Postmortem |
|---|---|---|---|---|
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 Futures Wheel helps explore the consequences of a decision, a trend, or a strategic move in a structured way. It makes visible which first, second, and third-order effects could arise from an event. | 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. | 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 | Medium | High | Medium |
Timedifferent | 20-45 min | 60-120 min | Halber Tag | 30-90 min |
Participantsdifferent | 3-12 | 3-10 | 5-20 | 3-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | Futures Wheel, Consequence Chains, Strategic Signals | Simulation Notes, Gaps List, Updated Runbooks | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | LearningOperationsImprovement | ForesightSystems thinkingSignals | ResilienceOperationsIncident | Site Reliability EngineeringIncidentLearningReliability |