基于Intranet机制的城市地理信息系统设计研究

The Prototype Design for UGIS Based on Intranet

将Ｉｎｔｒａｎｅｔ机制引入城市地理信息系统（ＵＧＩＳ）设计，给出了以目标为中心的新型地理信息系统平台结构体系。文章对新型地理信息系统的超媒体数据结构以及系统网络设计作了阐述，并指出了系统实施中需解决的关键问题。最后指出，新型ＧＩＳ系统改变了传统ＧＩＳ的运转方式、信息交流方式，强调信息共享与信息传播，同时注重信息的可靠性和安全性，从而可以提供更加可靠和广泛的地理信息服务。

Introducing Intranet mechanism into UGIS design,this paper puts forward a new GIS architecture with four platforms driven by spatial task servers.The new hypermedia data structure,system network requirements, and key points in the system have been expounded in the paper also.As pointed by authors,the new system not only focuses on sharing and transmitting information,but also emphasizes reliability and security.So surely it can be widely used in the future.