Event generation patterns in event-driven architecture involve techniques and strategies for generating events that represent significant occurrences or changes within a system. These patterns define how events are identified, captured, and produced based on specific triggers or conditions.

There are three general styles of event processing: simple, stream, and complex. The three styles are often used together in a mature event-driven architecture.

Event-Driven Architecture Patterns An EDA pattern designates how event producers, routers, and consumers work together. There are two common patterns in EDA architecture: publisher/subscriber and event streaming. The following sections expand on both these designs.

Event-driven architecture (EDA) is a software design pattern that enables the construction of scalable and loosely coupled systems. Events representing occurrences or changes in the system drive the flow. They are generated by various sources, published to an event bus or message broker, and consumed by interested components asynchronously.