How process instances can communicate? What is the use of Wait & Notify activities? What is inter-process communication?

TIBCO BusinessWorks allows two executing process instances to communicate. You may need process instances to communicate if you wish to synchronize process execution or if your processes must execute in a specific order.

TIBCO BusinessWorks provides the Wait and Notify activities and the Receive Notification process starter to handle inter-process communication. A process containing a Wait activity waits for another process to execute a corresponding Notify activity. Alternatively, the Receive Notification process starter creates a new process instance when another process executes the corresponding Notify activity.

The data sent between the activities is defined by a Notify Configuration shared configuration resource. The Notify activity only sends information to the Receive Notification process starter or Wait activity that specifies the same Notify Configuration resource.

If you wish only to signal the waiting process to continue but not exchange data, the Notify Configuration schema used by the Notify/Receive Notification/Wait activities can be empty.

To know the steps to develop Inter-process communication click here