Petri Net-Based Workflow Technology in Office Automation

Based on Petri nets and role modeling, Petri nets and the role will combine not only a good description of the relationship between activities and can also describe the activities of the main roles and the interaction between the roles, this method can en

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Petri Net-Based Workflow Technology in Office Automation Cuiping Wang

Abstract Based on Petri nets and role modeling, Petri nets and the role will combine not only a good description of the relationship between activities and can also describe the activities of the main roles and the interaction between the roles, this method can enhance model of comprehensive, and has a good flexibility. Keywords Petri net

 Role  Workflow

14.1 Introduction Workflow management technology is capable to plan workflow better and considerably shorten the time to handle the office businesses by reducing the unnecessary intermediate states in the documentation transfer process, speeding up the workflow processing and enhancing people’s work efficiency and management standardization. Workflow management technology itself is an abstract and highly complex technology [1, 2], and aims to extract an all-purpose model from various businesses of enterprises [3], expecting to describe the consistency of all kinds of businesses through this model. However, it is an extremely difficult task to gather numerous and complicated businesses on such a model. Fortunately, people have come to realize that it is relatively easy to start from general and simple businesses. Therefore, this chapter is devoted to the application of Petri net and role modeling to establish a workflow model applicable to office automation (OA) [4].

C. Wang (&) Zibo Vocational Institute, Zibo, shandong 255314, china e-mail: [email protected]

Y. Yang and M. Ma (eds.), Proceedings of the 2nd International Conference on Green Communications and Networks 2012 (GCN 2012): Volume 1, Lecture Notes in Electrical Engineering 223, DOI: 10.1007/978-3-642-35419-9_14 Ó Springer-Verlag Berlin Heidelberg 2013

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14.2 Workflow Model Based on Petri Net and Role Petri net combines the two aspects of rigorous semantics and graphic language, which is an ideal workflow modeling method and able to intuitively describe a workflow [5, 6]. Traditional workflow model attaches importance to the activities and relation description workflow and carries on management focusing on activities, ignoring the main roles of activities and the interaction between roles. However, the modeling based on Petri net and roles organically integrates Petri net with roles, describing not merely the activities as well as their relation but also the main roles of activities and the interaction between roles, and thus the comprehensiveness of model is intensified with fairly excellent flexibility. Definition 1 The model based on Petri net and roles can be defined as a 7-tupe (PR = {N, P, T, M, R, U, F}), where N is a name of procedure P is a set of place T is a set of transition and P\T = null M0 P ? N is initial marking (N here is a set of natural numbers); the distribution of token in place is the marking of Petri net (i.e., M: P ? N) R is a set of roles U is a set of users F is a set of relation. Besides, PT_(P 9 T) [ (T 9 P) is a set of directed arc or relation of linking place to transition or tr