Imperial College London

ISE-2 Surprise 97 Project

Approaches to Performance Evaluation

 IC Crest
  • Contents
  • Introduction
  • Benchmarking
  • Discrete Event Simulation
  • Modelling using Petrinets
  • Analytical Queuing Models
  • Perturbation Analysis of Discrete Event Dynamic Systems (PADEDS)
  • Conclusions
  • Index
  • Surprise 97 Index

    • Written by Wan Ling Li

    Performance - the capabilities of a machine

    Modelling using Petri Nets

    A Petri Net is an analytical method of describing a system. A Petri Net is a well defined graphical approach to modelling a system. Systems that have concurrency are best suited to this method. So if in a car manufacturing plant there are 2 machines to say paint the car then a Petri Net could be used here. Alternatively if management wanted to introduce a new machine to run along side an existing one, a Petri Net could be used to see if any advantage will be gained.

    Petri Nets were first developed in the 60's by C. A. Petri. It has no relationship though with the biological Petri-Dishes. This graphical language provides a method to easily describe a concurrent system.

    For more details about this topic, please refer to Nick Chapman's Article 2: Modelling with Petri Nets.

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    Last Updated 27th May, 1997