# Event Driven Architecture
**Source:** https://glossary.keenfunnel.com/terms/event-driven-architecture
**Language:** French

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## Explication technique

Producers publish events without directly controlling consumers. Brokers, streams, or queues distribute them to interested services, which react asynchronously. Designs must address event contracts, delivery guarantees, ordering, idempotency, schema evolution, retries, and observability.

## Pertinence commerciale

EDA can reduce coupling, improve responsiveness, and let multiple processes react to the same business event. It supports scalable integration and near-real-time automation.

## Exemple d'implémentation

When an order is confirmed, an event triggers inventory reservation, customer notification, analytics, and fulfilment independently rather than through one synchronous chain.

## Limites et idées reçues courantes

Asynchronous systems are harder to trace, test, and reason about. Duplicate, delayed, or out-of-order events are normal design concerns, and eventual consistency may not suit every process.

## Sujets

Architecture des systèmes Automatisation intelligente Ingénierie des données

## Sources

CloudEvents Specification — AWS — Event-driven architecture — https://aws.amazon.com/event-driven-architecture/

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