Jit Procurement Strategy Under The Conditions Of Multi-source Supplier

Just-in-time purchasing problem has been discussed in industry and academia, including the focus of researching in procurement quantity and cycles. The mathematical models are used to solve these problems in order to improve the quality and speed.Models about one source supplier are studied maturely to cut total cost of supply chain down. In this paper, the optimal production batch, the purchasers and the optimum order batch purchase quantity of every single best delivery times. In addition, use of MATLAB software is calculated, the relationship between variables and draw variable relationship chart are analyzed.The optimal selection of supplier research, but also a mature supplier selection and order distribution of research literature is combined with the construction model, whether in or on solving the difficulties. This document using analytic hierarchy network combined with linear programming, supplier of ANP evaluation system, considering the numerous qualitative, quantitative and mutual influence between the evaluation factors related to supply the monophyletic model is expanded, and are solved by examples.In order to get more closer to the actual production condition, for many varieties of suppliers is analyzed, the first by integer programming are the supplier of choice, constructing model and give the solution, To choose the multiple suppliers, the orders assignment, also take linear programming method to establish the model, and some examples of calculation.Of course, this paper still has shortcomings, such as constructing the evaluation system of ANP is still a incomplete system, process is relatively complex, the model of optimal solution for slower. In addition, the price discount, items, metamorphic factors are not into consideration, otherwise the model will be more perfect.