A ProgramTransitionEventTypeis specified for each of the DomainDownload Programtransitions. The EventTypestrigger a specific Eventnotification to the Clientwhen the associated state transition occurs in the running ProgramInstance. The Eventnotification identifies the transition. The SendingToSending state transition also includes intermediate result data.

The SendingToSending Programtransition Eventrelays intermediate result data to the Clientalong with the notification. Each time the transition occurs, data items describing the amount and percentage of data transferred are sent to the Client.

The DomainDownload Programretains final result data following a completed or aborted download. The data includes the total transaction time and the size of the domain. In the event of an aborted download, the reason for the termination is retained.