Internet的可扩展特性和自描述性以及其它特性克服了传统的标准缺乏灵活性和可扩展性的弱点,使得异构系统之间交换数据变得 XMLEDI容易起来;基于的数据交换中心提供了一个便捷、可扩展的数据交换解决方案。该文在讨论特性,用实现数据交换的XMLInternetXMLXML方法,以及基于数据交换中心应用前景的基础上,着重探讨了基于数据交换中心原型系统的设计和实现。XMLXML Extensibility and self-descriptiveness of the Internet and other features overcome the weakness of traditional standards that lack flexibility and scalability, making it easier to exchange data between heterogeneous systems into XMLEDI; the data-centric-based clearinghouse provides a handy , Scalable data exchange solution. Based on the discussion of the features, the XMLInternetXMLXML method for data exchange, and the application prospect of data exchange center, this paper focuses on the design and implementation of prototype system based on data exchange center. XMLXML