资源与环境元数据网络一体化管理模式与应用研究

Study and Application of Network-based Integrated Management Model of Resources and Environment Metadata

资源与环境数据由于涉及的范围广、种类多、多语义、数据量大等特点 ,而给资源与环境信息的共享带来了很大的困难。元数据机制是实现资源与环境数据管理和共享的重要方法和手段。本文分析了现有的资源与环境元数据的管理模式 ,探讨建立一个基于网络的资源与环境数据的开放、可扩展的元数据库 ,在管理上实现数据用户、元数据、数据集三位一体的管理模式 ,并采用当前一些先进的开发技术实现了该模式 ,设计、开发和完成了国家资源与环境数据库元数据管理工具软件 MMT- 1。

There are some difficulties in sharing of resource and environmental information because of their multi-scope, multi-species, multi-significance and large data. Metadata is an important and efficient means for solving the problem. This paper has analyzed the current managing models of metadata of resources and environment. Subsequently, it discusses constructing a network-based, open and extendable metadata database management system and carrying out a management model of trinity of data users, metadata and datasets. Finally, a metadata management software MMT-1 has been completed by some advanced developing means and successfully applied.