An intermediate event is an occurrence situated between a start and an end event in a process or system. It is represented by a circle with a double line. This event can either catch or throw information, and the directional flow is indicated by connecting objects, determining whether the event is catching or throwing information.

​
Message throw intermediate event

This event throws a message and continues with the process flow. It enables the sending of a message to a unique destination.

Message Throw Intermediate Event

​
Message catch intermediate event

This event waits for a message to be caught before continuing with the process flow.

Message Catch Intermediate Event