空间元数据管理与发布技术研究

System Design for Managing and Sharing of Geo-spatial Metadata

随着信息技术的飞速发展,元数据正成为地理空间信息资源共享的关键。按照ISO/TC211的19115空间元数据标准,简要介绍了空间元数据的元素组成和分类应用,提出了空间元数据建库的一些基本原则,给出了一个基于XML和Z39.50协议的元数据管理与共享系统设计方案,并对其中的关键技术提出了一些实现策略与建议。

Metadata is becoming the absolutely essential solution for the sharing of geo-spatial data with the rapid development of information technologies. This paper introduce the contents and applications of metadata according to the ISO＇s geo-spatial metadata standard, and proposes some principles on how to create a meta-database, then emphasizes on a framework for managing and sharing of geo-spatial metadata based on XML and Z39.50 protocol with detailed description of two key components and their implementation strategies.