中文摘要：

介绍了企业应用集成的必要性和集成的优势，在与多种企业应用集成解决方案的比较后选择采用柔性集成的Web服务技术。描叙了Web服务的关键技术，重点分析研究了基于Web服务的CAX／PDM／ERP集成架构并给出了详细的调用过程；最后通过一个实际的例子进行分析，总结并展望了这种集成的应用前景。

英文摘要：

This article introduced, the necessary of enterprise application integration（ EAI）, analyzed the traditional solutions of EAI. Indicated the key technique based on Web services, and researched the framework of CAX/PDM/ERP system based on Web services. At last, proposed an example of this way and drew a conclusion that such architecture had a broad prospect in the field of EAI.