Event-driven architecture (EDA) is a software model that promotes the production and consumption of events. People use this technology all of the time and may not even know. For example, EDA drives eCommerce websites. An online retail store (producer) offers shoppers (consumers) an online shopping experience to record, or trigger, an “event” (purchase). The software goal: Decouple producer and consumer services, which allows events to be scaled, updated, and deployed independently.