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| Criterion |  Delivery Communication Plan |  Architecture arc42 |  Operations Runbook |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | When many people need to be informed in parallel and messages would otherwise arrive unevenly or too late, a Communication Plan orders communication reliably. Channels, audiences, and cadences interlock so important information doesn't get lost. | 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 recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 45-90 min | 1-2 Tage | 20-60 min | 15-45 min |
Participantsdifferent | 2-6 | 1-4 | 1-4 | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Async | Async |
Outputdifferent | Communication Plan, Channel Matrix, Message Cadence | Architecture Document, Context View, Runtime View, Deployment View | Runbook, Checklist, Escalation Path | ADR File, Decision Log, Rationale |
Tagsno overlap | CommunicationStakeholdersDeliveryPlanning | ArchitectureDocumentationCommunication | OperationsReliabilityDocumentation | ArchitectureRationaleDocumentationGovernance |