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| Criterion |  Facilitation Open Space Technology |  Operations After-Action Review |  DevOps Blameless Postmortem |
|---|---|---|---|
Purposedifferent | When a complex topic does not yet have a fitting agenda, Open Space Technology hands topic ownership back to the participants. The format suits questions that only move forward when real interest determines the order. | 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 | Low | Medium |
Timedifferent | 0.5-2 Tage | 20-45 min | 30-90 min |
Participantsdifferent | 20-500+ | 3-12 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Session Marketplace, Proceedings, Action Topics | Lessons learned, Action items, Event summary | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | FacilitationLarge groupAutonomy | LearningOperationsImprovement | Site Reliability EngineeringIncidentLearningReliability |
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