When a business process is required to wait for any specified reason (i.e. some information is required before the next step of the process may proceed), then an event wait activity is required. An event wait activity is similar to a manual activity in that it specifies an event which the Workflow Engine waits for to signify that the activity has been completed. Event wait activities, however, do not create tasks for users. Once the specified event has been raised in the application, the Workflow Engine completes the event wait activity and proceeds to transition to the next activity in the process definition.
The metadata associated with event wait activities is described in the Event Wait chapter of the Cúram Workflow Reference Guide.