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| Criterion |  Facilitation Open Space Technology |  DevOps Blameless Postmortem |  Operations Causal Factor Analysis |  DevOps Incident Timeline Analysis |
|---|---|---|---|---|
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 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. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | 0.5-2 Tage | 30-90 min | 2-6 h | 60-180 min |
Participantsdifferent | 20-500+ | 3-12 | 3-10 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Session Marketplace, Proceedings, Action Topics | Postmortem Doc, Action Items, Timeline | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions |
Tagsno overlap | FacilitationLarge groupAutonomy | Site Reliability EngineeringIncidentLearningReliability | CausalityIncidentRoot causeTimeline | IncidentTimelineSite Reliability Engineering |