摘要： 作为数字地球重要支撑技术之一的地理信息元数据技术随着信息技术的飞速发展显得越来越重要。该文对现有的典型地理信息元数据内容和标准以及实现系统进行了分析和综合比较，然后对地理信息元数据内容与标准的制订、地理信息元数据系统的建设提出了一点思考，希望能够对相关的研究有所启发。

关键词: 地理信息元数据, 元数据系统, Z39.50

Abstract: As a most important supporting technology for digital earth, geospatial metadata technology is becoming a vital factor of information system. In this paper, current typical geospatial metadata standards and metadata systems are analyzed and compared synthetically. After that, some thoughts and proposals are given to help make geospatial metadata standard and construct metadata system.

中图分类号: 

• TP399