To solve a serial of problems about mass workload,hard copying data of meters and hard charging,brought by copying data of meters by manpower,a method of the serial connect RS 485 communication is adopted to carry out reliably concentrated collection of data of electric energy in communication of electric energy metes of community.

Elementary introduction on centralized purchase of medical equipment in our hospital;

Design and implementation of medicine centralized purchase system based on J2EE;

Research on Centralized Purchase Management of Goods and Materials in Anhui Electric Power Corporation;

The decision-making by centralized purchasing matrix in automobile parts;

Study on centralized purchasing mode in domestic shipbuilding industry under the electronic commerce environment

centralized purchasing and integrated supply,describes a kind of organization-"extended enterprise",and analyses the structure of spare parts supply chain in outsourcing.

A supplier-enterprise group system which consists of a supplier, a group headquarters and several affiliated firms was considered in order to seek optimal order quantity of centralized procurement in enterprise group, in which the demand of each firm is an independent increment process and independent of other firms.

In order to solve the bargaining problems of centralized procurement in the environment of e-commerce,we propose the concept of Bargaining Track Chart.