ELI5: Explain Like I'm 5

Event-driven architecture

Event-driven architecture is a way of designing systems and software so that events can trigger different things to happen. For example, if a website receives an order, it would send an event (like an alarm or signal) to start processing the order. Then, different things can happen based on that event - the order can be sent for payment processing and packaging, for example. Event-driven architecture helps systems work more efficiently and helps complex tasks get completed quickly.