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| Criterion |  DevOps Blameless Postmortem |  Facilitation Fishbowl Discussion |  Facilitation Open Space Technology |  Facilitation Lean Coffee |
|---|---|---|---|---|
Purposedifferent | 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 controversial topic needs depth and discipline at the same time, Fishbowl Discussion makes the structure of the conversation transparent. The format keeps the core small enough for real dialogue and open enough for controlled turnover. | 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. | When a group without a fixed agenda needs to get into useful conversations quickly, Lean Coffee structures the start around interests rather than a presentation. The group itself negotiates which topics get time first and which wait. |
Complexitydifferent | Medium | Medium | High | Low |
Timedifferent | 30-90 min | 45-90 min | 0.5-2 Tage | 30-90 min |
Participantsdifferent | 3-12 | 8-80 | 20-500+ | 3-20 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Discussion Insights, Observed Tensions, Follow-up Questions | Session Marketplace, Proceedings, Action Topics | Prioritized Topics, Discussion Notes, Action Items |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | FacilitationDialogueLarge group | FacilitationLarge groupAutonomy | FacilitationAutonomyDialogue |