Suggest an editImprove this articleRefine the answer for “Why does EDA reduce coupling between services?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)**EDA** reduces coupling between services because they do not talk to each other directly, but interact through events passed through a message broker. **Key point:** each service is autonomous, easily replaceable, and does not break the others when changes happen, because the only contract between them is the structure of the event.Shown above the full answer for quick recall.Answer (EN)ImageEDA (event-driven architecture) reduces coupling between services because services **do not talk to each other directly**, but **interact through events** passed through a message broker. ### 1. **No direct dependencies** The publisher of an event ("OrderCreated") does not know who will receive it or how they will react. It just publishes the fact: the infrastructure does the rest. This removes direct calls like REST requests and eliminates dependency on other services' APIs. ### 2. **Subscriber flexibility** Subscribers can change, be added, or be removed without changing the publisher's code. For example, an analytics or notification service can later be attached to the "payment completed" event: the other services will not notice. ### 3. **Isolated development** Each service evolves independently: its own logic, data schema, language, update frequency. The only contract is the structure of the event. ### 4. **Buffering and resilience** The message broker accepts events even if a consumer is temporarily unavailable, removing the rigid synchronous "sender → receiver" dependency. **Summary:** > In EDA, services are connected **through events, not directly**, > so each of them is autonomous, easily replaceable, and does not break the others when changes happen.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.