OR-split AND-join
OR-split AND-join
Figurę 1.8 An event-based description of a workflow procedurę.
If we convert the event-based description shown in Figurę 1.8 to a Petri net, we obtain the net shown in Figurę 1.9. The tasks are modeled by transitions and intermediate States are modeled by places. Notę that in contrast to the description given in Figurę 1.8 it is possible to refer to states between the execution of subseąuent tasks.
Figurę 1.9 A state-based description of a workflow procedurę.