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Workflow modeling and diagnosis with Petri nets -- a case study of a manufacturing.

Mikolajczak, Boleslaw; Byrne, Debora l.

In: Proceedings of the second IEEE International Conference on Systems, Man and Cybernetics (SMC'02), October 6-9, 2002, Hammamet, Tunisia, Volume 5. IEEE Computer Society Press, October 2002.

Abstract: In past, systems were designed to support the execution of individual tasks, focusing on processes rather than hierarchy and function. It became evident that this method was effective but not efficient or cost effective within business processes. The systems also need to control, monitor and support logistical aspects of a business process to manage the flow of work. The identification of concepts, techniques and tools to support the management of workflow, created the idea of workflow management systems. The definition of processes being the dominant factor in workflow management makes it important to establish the framework for modeling and analyzing these processes. Once the initial workflow development plan is completed, the workflow needs to be tested. Petri net diagrams can be used to aid in the layout and scheduling of tasks. Petri net diagrams can aide in identification of issues such as identifying sequential tasks, constraints, bottlenecks in the process and identifying tasks that can be accomplished earlier in the process. Petri net diagrams can also highlight dependencies between tasks in a workflow process. This paper presents modeling and analysis of workflows for printing wiring board manufacturing system using Petri nets.

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