基于元数据集成检索系统的设计与实现

Design and Implementation of Integration Querying System Based on Metadata

文章应用XML Schema设计元数据字典的通用模型,建立一个XML统一逻辑视图,使用XQuery查询语言对XML文档进行查询处理,为用户提供一个统一的查询接口,实现对分布式异构数据源的透明访问和集成检索,并给出了主要环节的实现方法。

This paper presents a model for metadata dictionary designed with XML Schema, constituting a whole view based on XML, querying document based on XML by using XQuery query language, bringing forward a uniform query interface for users, achieving accessing transparently and querying uniformly on the distributed heterogeneous system, and realizing primary technique in the system.