地理信息系统Metadata共享和安全

Share and Safety of GIS Metadata

地理信息系统 (GIS)的核心是数据 ,数据的共享及其安全是GIS技术的关键 ,特别是GIS网络 ,而元数据 (Metadata)机制提供了有效的方法。笔者介绍了Metadata及其共享和安全的重要性 ,并对ArcSDE安全机制与Metadata共享及安全实施进行了分析 。

The core of GIS is data. Share and safety of the data are the key of GIS technology especially for the GIS network. Metadata provide as an efficient means for GIS. In this paper, Metadata and the importance of their share and safety are introduced. At the same time, the safe mechanism of ArcSDE and the share of Metadata and their safe implementation are analyzed. On the basis of GIS software technology, the feasibility of share and safety technology of Metadata is discussed.