中文摘要：

随着语义Web的快速发展，如何使用RDF来描述万维网上的数据以方便语义Web的应用成为一项重要的研究课题。鉴于大部分数据都保存在关系数据库中，设计并实现了一个面向关系数据库的RDF映射系统。给出了关系数据库到RDF数据模型的映射方法，在此基础上，介绍了映射系统的实现过程。实验结果表明，映射系统能够完整地表示关系数据库的模式、数据以及隐含的语义信息。

英文摘要：

With the rapid development of semantic Web, how to describe the Web data using RDF to facilitate the semantic Web application is becoming an important research topic. A mapping system from relation database to RDF is designed and implemented considering most data is stored in the relational database. The approach of mapping from relational database to RDF is proposed. On this basis, the implementation process of the mapping system is introduced. The experimental results show that the schema, data and potential semantic information of relational database are integrally represented using the mapping system.