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Patterns for information exchange between components, services, and teams; describes models, protocols and integration strategies.
Communication patterns describe recurring ways and protocols by which components, services, or teams exchange information. They cover synchronous and asynchronous models, message formats, error handling and consistency strategies. Understanding these patterns reduces coupling, improves scalability and helps manage integration risks. Practical patterns include pub/sub, request-reply and event sourcing.
Number of messages processed per second; indicator of performance.
Time between event creation and processing; important for responsiveness.
Share of failed messages and overflow into dead-letter queues.
Orders produce events that loosely couple inventory, billing and shipping.
Secure synchronous API calls with consistent contracts and timeouts.
Metrics and events are streamed and centrally analyzed to reconstruct communication traces.
Analyze existing communication paths and identify bottlenecks
Select appropriate patterns (e.g. pub/sub, request/reply, event sourcing)
Define schemas, contracts and SLAs
Introduce iteratively with monitoring and feedback loops