Reliability analysis for phased-mission system of supply chain based on BDD

Supply chain can be viewed as a network structure of member enterprises, and the evaluation of reliability behaves an important significance for improving the efficiency of management. In this paper, the supply chain is viewed as a phased-mission system (PMS), the reliability of the PMS based on the delivery time of suppliers is investigated. Consider the complexity of network structure in supply chain, the reliability model for each stage in the system is developed based on the fault tree and binary decision diagram (BDD), then the total reliability of the PMS of supply chain is deduced by simplifying the redundant structure of the fault tree, meanwhile, the flow of assessment for reliability at certain stage is also given. Finally, a numerical example is presented to validate the proposed approach. The results should be useful for evaluating the reliability and safety of a supply chain environment.