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| Criterion |  DevOps ChatOps |  Architecture Architecture Decision Record |  DevOps Blameless Postmortem |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | Ongoing | 15-45 min | 30-90 min | 1-2 Tage |
Participantsdifferent | 2-20 | 1-3 | 3-12 | 1-4 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Chat Transcript, Action Log, Automations | ADR File, Decision Log, Rationale | Postmortem Doc, Action Items, Timeline | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | CollaborationEngineeringIncident | ArchitectureRationaleDocumentationGovernance | Site Reliability EngineeringIncidentLearningReliability | ArchitectureDocumentationCommunication |