Business Process Modeling, Management and Mining
Business Process Model and Notation
Prof. Cesare Pautasso
http://www.pautasso.info
[email protected]
@pautasso
Event Gateway
Branch the control flow depending on which intermediate event happens first
Event Gateway Example
Wait to receive a payment for up to 30 days. If the payment is late, send a reminder
Events
Messages vs. Signals
Messages are exchanged between one source and one destination
Signals are broadcast to all interested parties (publish/subscribe)
Timer Events
Instantiate a process periodically
Delay Control Flow for some time
Error Events
Indicate that a process failed
Terminate Events
Immediately stop the execution of all activities of the process
Example: Race B against C and terminate the process when the first completes
Escalation Events
Delegate to a higher level of authority
Sub Process
Progressive refinement, abstraction of details
Boundary Events
React to internal events happening during the SubProcess execution
Boundary ⇒ Intermediate and Catching
Interrupting
Stop the execution of all activities within the subprocess (default)
Control flow continues outside the subprocess
Non-Interrupting
Continue the execution of any activities within the subprocess
Control flow continues both inside and outside the subprocess
Time Boundary Events
References
Messaging Events
Boundary Events
