摘要
为了更好地实现科学数据的共享与获取,在研究科技资源数据特点和XML技术的基础上,提出基于多级元数据查询系统的体系架构。重点介绍XML Schema描述的多级元数据结构及其在科技资源数据库查询优化中的应用。研究表明,多级元数据有助于数据查找与定位,使得科技资源数据在科学研究与生产生活中得到更好应用。
In order to improve sharing and acquisition of the scientific data, query system architecture based on multi - titers metadata is proposed on study of the scientific resource data features and XML technology. It focuses on multi - tier metadata structure of scientific resource database depicted by XML Schema and its application in the optimization for the scientific resource databases query. Research has shown that this framework is helpful for the data location and search and it promotes data utilization ratio in scientific research, production and living.
出处
《现代图书情报技术》
CSSCI
北大核心
2007年第12期16-19,共4页
New Technology of Library and Information Service
