一、概述目前,被业界称为计算机 IT 技术的第三次革命(继 PC 和Internet 之后)的 Web Service 技术已经逐步显露出巨大商业机会,软件业因此正在酝酿一场巨变。Web Service 技术的发展将促使 Web Service 应用的成熟和完善,而 Web Service 应用模式将为商业应用提供指引,并促进商业应用的普及。Web Service 是当今 IT 业界的焦点所在。Web Service 的主要目标就是在现有的各种异构平台的基础上构筑一个通用的与 I. Overview At present, the Web Services technology, which is called as the third revolution of computer IT technology (after PC and Internet) by the industry, has gradually revealed a tremendous business opportunity and the software industry is therefore undergoing a drastic change. The development of Web Service technology will promote the maturity and perfection of Web Service application, while Web Service application mode will provide guidance for commercial application and promote the popularization of commercial application. Web Service is the focus of today’s IT industry. The main goal of Web Service is to build a universal