International Journal of Applied Science and Technology

ISSN 2221-0997 (Print), 2221-1004 (Online) 10.30845/ijast


Julie Drzymalski, N.G. Odrey

This research presents a framework for a multi-echelon, multi-stage synchronized supply chain (SSC), reactive to supplier changes with the objective of maintaining due date. Modeling of the SC environment is accomplished using a hierarchical and modular Generalized Stochastic Petri net (GSPN). The hierarchy includes a Supply Chain Manager (SCM) controlling the supplier  activities of the lower SC members. This enforcement is achieved by the SCM through the use of supervisory control nets. However, since the supplier subset changes, traditional supervisory methodology for Petri nets was extended to a dynamic situation. This new dynamic control net technique was further decentralized by a new technique utilizing Petri net transition guards imposing a hierarchical set of supplier constraints on each SC member. The SSC was tested and resulted in a dynamically controlled, reactive system can result in lower overall costs, improved on-time shipment performance and lower total inventory than an uncontrolled SC.

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