Business Events and Event Delivery Network
You can raise business events when a situation of interest occurs. Business events are messages sent as the result of an occurrence or situation, such as a new order or completion of an order. In Oracle SOA Suite, the mediator service component subscribes or publishes events. When an event is published, other applications can subscribe to it.
Definitions for business events, as well as other artifacts of a composite, are stored in the Oracle Metadata Repository (MDS), and then published in the Event Delivery Network (EDN).