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| Criterion |  DevOps Blameless Postmortem |  Architecture arc42 |  DevOps ChatOps |
|---|---|---|---|
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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | For operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come together. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 30-90 min | 1-2 Tage | Ongoing |
Participantsdifferent | 3-12 | 1-4 | 2-20 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Architecture Document, Context View, Runtime View, Deployment View | Chat Transcript, Action Log, Automations |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ArchitectureDocumentationCommunication | CollaborationEngineeringIncident |
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