Web服务是在互联网上的一种服务协议，采用XML作为基本的标记语言，SOAP（Simple Object Access Protocol）作为互操作协议，WSDL（Web Service Descr iption Language）作为服务描述语言，通过UDDI（Universal Descr iption Discovery & Integration）可以把服务注册到互联网以便搜索，为更多的用户使用其服务。可以看出，这些定义各有侧重，但有几点是一致的。首先，它是由企业驱动和应用驱动而产生的；其次，它具有分布性、松散藕合、可复用性、开放性以及可交互性等特性

-Web services are a service on the Internet protocol, using XML as the basic markup language, SOAP (Simple Object Access Protocol) as the interoperability protocols, WSDL (Web Service Descr iption Language) as a service descr iption language, through UDDI (Universal Descr iption Discovery &　Integration) for the service up to the Internet to search for more users to use their services. It can be seen, these definitions have different emphases, but there are several points are the same. First, it is driven by the business drivers and applications arising　Second, it has a distribution, loose coupling, reusability, openness as well as interactive features such as