Software Architect's Handbook

Event processing styles

Event processors are components that have a specific task and contain logic to analyze and take action on events. Each event processor should be independent and loosely coupled with other event processors.

Once event messages reach event processors, there are three prevalent styles for processing events: simple event processing (SEP), event stream processing (ESP), and complex event processing (CEP). The type of event processing needed by a particular application depends on the processing complexity that is required. EDAs may utilize a combination of these three styles.