ESPNET: expert-system-based simulator of Petri nets

A Petri net is a modelling tool used in the design and analysis of systems. The expert system language OPS5 has a similar execution strategy to a Petri net model, and hence Petri nets may be simulated using the OPS5 language. ESPNET has been designed to be used in a rapid prototyping mode to allow users to quickly develop simulation models of the work flow through manufacturing systems. The system described takes a Petri net for its input, and then generates an OPS5 simulator as output. The simulation model developed may then be used to size flexible assembly systems and flexible manufacturing systems based on the system performance and resource utilisation data generated by the model.