Im trying to build bridges between mathematics and practical subjects like information technology and engineering. A Petri nets (PNs) are a graphical and mathematical tool that are used for describing and studying information processing systems that are characterized as being concurrent, asynchronous, distributed, parallel, non-deterministic and/or stochastic. As a graphical tool, Petri nets can be used as a visual-communication aid similar to flow charts, block diagrams and networks. Tokens are used in these nets to simulate the dynamic and concurrent states of systems. As a mathematical...