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| Criterion |  Architecture Architecture Decision Record |  Architecture arc42 |  Delivery Communication Plan |
|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 15-45 min | 1-2 Tage | 45-90 min |
Participantsdifferent | 1-3 | 1-4 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View | Communication Plan, Channel Matrix, Message Cadence |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication | CommunicationStakeholdersDeliveryPlanning |
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