How does Scala enable event-driven architecture in large-scale systems?

Scala enables event-driven architecture using actors, streams, and functional effects to decouple producers and consumers.

Event-driven architecture (EDA) in Scala is typically implemented using Akka Actors, Akka Streams, or ZIO event workflows. Systems emit immutable events that are processed asynchronously by independent consumers. This decouples services, improves scalability, and enables reactive systems. Backpressure and message queues ensure stability under load.