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Modelling and Simulation in Engineering
Volume 2012, Article ID 383129, 7 pages
Research Article

A Key Event Path Analysis Approach for Integrated Systems

China Ship Development and Design Center, 268 Zhang Zhidong Road, Hubei Province, Wuhan 430064, China

Received 6 April 2012; Accepted 23 July 2012

Academic Editor: Hing Kai Chan

Copyright © 2012 Jingjing Liao. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


By studying the key event paths of probabilistic event structure graphs (PESGs), a key event path analysis approach for integrated system models is proposed. According to translation rules concluded from integrated system architecture descriptions, the corresponding PESGs are constructed from the colored Petri Net (CPN) models. Then the definitions of cycle event paths, sequence event paths, and key event paths are given. Whereafter based on the statistic results after the simulation of CPN models, key event paths are found out by the sensitive analysis approach. This approach focuses on the logic structures of CPN models, which is reliable and could be the basis of structured analysis for discrete event systems. An example of radar model is given to characterize the application of this approach, and the results are worthy of trust.