Priorities
See the Petri net model as shown in following figure (h).
![908_Priorities.png](https://www.expertsmind.com/../CMSImages/908_Priorities.png)
Figure (h): Representation of Priorities in a Petri Net
The classical Petri net has no mechanism to explain the priorities or to present the inhibitor arcs. All new types of arcs assist the Petri nets to model the priorities inherent in such systems.