交通运输系统工程与信息 ›› 2005, Vol. 5 ›› Issue (3): 61-64 .

• 信息科学与通信工程 • 上一篇    下一篇

轨道交通基础数据库元数据内容体系研究

梁艳平,刘仍奎,芮小平,王福田   

  1. 北京交通大学轨道交通实验室,北京100044
  • 收稿日期:2005-01-27 修回日期:1900-01-01 出版日期:2005-06-20 发布日期:2005-06-20

A Metadata Content System of
Rail Transit Fundamental Database

LIANG Yan-ping,LIU Reng-kui,RUI Xiao-ping,WANG Fu-tian   

  1. Laboratory of Rail Transit,Beijing JiaoTong University,
    Beijing100044, China
  • Received:2005-01-27 Revised:1900-01-01 Online:2005-06-20 Published:2005-06-20

摘要: 在分析轨道交通基础数据内容构成与数据特点的基础上,探讨了轨道交通基础数据库元数据的概念与作用,建立了完善的轨道交通基础数据库的元数据内容体系,将元数据分为数据库层元数据、数据集层元数据和要素层元数据三个层次,并详细分析了各个层次的元数据作用与元数据组成要素.本文的研究成果为轨道交通基础库平台建设及信息共享莫定了基础.

关键词: 轨道交通, 基础数据库, 元数据内容体系, 信息共享

Abstract: Based on analyzing the content and characteristics of railtransit fundamental data,this paper discussed the metadata concept and function of rail transit fundamental database, then established a perfect metadata content system of rail transit fundamental database. This system is composed of three levels:metadata for database, metadata for the data set and metadata for the data elements. The paper also analyzed the metadata function and metadata elements at each leve1. The research results will provide a basis for the construction of a database plat and information sharing.

Key words: rail transit, fundamental database, metadata contents ystem, information sharing