基于XML的信息集成研究

基于可扩展标记语言(extensible markup language,XML)的Web服务作为一种新型的信息集成架构已经受到来自数据库领域和软件工程领域的广泛关注.服务的整个构建、描述、发布、发现、数据传输过程都是以XML为基础的.在分析了XML的特性的基础上,提出将服务组合、调用的接口处理问题转换成XML数据的处理问题,将服务传送的异构数据、参数的处理转换成XML消息的处理.在此基础上,提出了基于XML的异构信息集成方案.该方案将异构数据库数据以及接口处理信息转换成XML文档,按照通用的XML文档的格式来访问异构系统服务,集成系统服务,并可以通过XML文档的加密/解密来保证系统内部数据的安全性.最后还分析了基于XML的信息集成方案的实现.

Study on XML-based information integration

Nowadays,XML is the standard mode for describing and exchanging datas.And the XML-based web service is attended by more and more people from database fields and software engineering fields as one new information integration architecture.The whole process of service creating,describing,publishing,discovering and data transfering is based on XML.The features of XML are analyzed.Then,the deposal of service combination and invoking are converted to deposal of XML data.And the isomerous datas in service transmission or parameters is also converted XML data.More,XML-based isomerous information integration scheme is put for-ward.Firstly,this scheme coverts the isomerous database's data and interface information to XML document.Second,isomerous system services are accessed according to the universal XML document schema.Third,the data's security in system is guaranteed by XML datas encrypt/decrypt.Finally,the scheme realization is analyzed.