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With the advent of globalization , knowledge, information , the business activities of environmental uncertainty , caused by exposure to more complex space , demand uncertainty , competition , uncertainty , technology development , the uncertainty of the resource needs of the business . more stringent requirements , enterprises rely on its own strength is difficult to survive in the fierce market competition and development in quality and quantity , time and space . Modern logistics management starts to run out by the enterprises themselves , up and downstream joint collaboration of different enterprises , and thus to the development of supply chain management direction . In this context of the times , in order to gain more benefits , this organizational model of the industry supply chain has become a better choice . Upstream and downstream enterprises to establish a supply chain alliance to break the traditional fragmented , segmented inventory management mode , integrated systems thinking inventory management , coordination of the operation to the whole supply chain system . This article is taking into account demand and transportation costs , market demand and ordering lead time of these two factors difficult to control inventory model , respectively, lead to determine the needs and ordering ; needs to determine , lead time random ; stochastic demand , ordering lead time to determine ; integrated optimization model for the establishment of the industry supply chain , inventory and transportation system demand and order lead four random case . Through the analysis of the specific industry supply chain , combined with the knowledge of the inventory and the cost and lead time for the market demand and ordering four distribution supply chain , the overall profitability of the maximum as the objective function established with price discount and transportation discount two supply chain inventory optimization model . The model took into account the level of service , Pareto efficiency factors and a Coal Group industry supply chain , for example , to verify the correctness and feasibility of the establishment of the integrated optimization model , while the use of sensitivity analysis , projections function parameter changes on the overall profit of the industry supply chain , to improve the usefulness of the model has important practical significance .
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