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The Unfolding: Origins, Techniques, and Applications within Discrete Event Systems

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  • Younes Rouabah

    (Institute of Systems Engineering, Macau University of Science and Technology, Taipa, Macau SAR, China)

  • Zhiwu Li

    (Institute of Systems Engineering, Macau University of Science and Technology, Taipa, Macau SAR, China)

Abstract

This article aims to provide a perspective on the foundations and developments of the net unfolding techniques and their applications to discrete event systems. The numerous methods applied to concurrency presented in the literature can be roughly divided into two classes: those that assume concurrency can be represented by means of a non-deterministic form, and those that represent concurrency by means of causal relations. This study serves as an ideal starting point for researchers interested in true concurrency semantics by offering a concise literature review of one of the major streams of research towards concurrency and interleaving problems. In order to cope with the state-explosion problem, the unfolding approach is used. Based on the findings of concurrency theory, interleaving semantics are replaced with a unique partially ordered occurrence net. In this paper, we aim to provide a comprehensive review on the history of net unfoldings, the methods that are based on these unfoldings, and how they are used in discrete event systems for automatic verification and compact representations purposes.

Suggested Citation

  • Younes Rouabah & Zhiwu Li, 2022. "The Unfolding: Origins, Techniques, and Applications within Discrete Event Systems," Mathematics, MDPI, vol. 11(1), pages 1-28, December.
    • Handle: RePEc:gam:jmathe:v:11:y:2022:i:1:p:47-:d:1012245
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    References listed on IDEAS

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    1. Murat Uzam & ZhiWu Li & Gökhan Gelen & Rabiu Saleh Zakariyya, 2016. "A divide-and-conquer-method for the synthesis of liveness enforcing supervisors for flexible manufacturing systems," Journal of Intelligent Manufacturing, Springer, vol. 27(5), pages 1111-1129, October.
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