Journal of Transportation Systems Engineering and Information Technology

Journal of Transportation Systems Engineering and Information Technology ›› 2005, Vol. 5 ›› Issue (6): 62-67 .

• Systems Engineering Theory and Methods • Previous Articles     Next Articles

An Interoperation Model of Distributed Geospatial
Information Service

GONG Zhen-yu1, JIA Li- min2   

  1. 1.Postgraduate Department,China Academy of Railway Sciences,Beijing 100081,China;
    2. Collage of Transportation, Beijing Jiaotong University, Beijing 100081,China
  • Received:2005-09-21 Revised:1900-01-01 Online:2005-12-25 Published:2005-12-25

一种分布式空间信息服务的互操作模型

龚震宇1，贾利民2   

  1. 1.中国铁道科学研究院研究生部，北京100081;
    2.北京交通大学运输学院，北京100081

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Abstract: This paper analyzes two popular architectures in the existing WebGIS and discusses the existing problems thoroughly. The insufficiency in sharing geospatial information and function interoperability between different systems are the biggest obstacles to block the development of WebGIS. The seven-layered interoperation model of distributed geospatial information service based on the newest web technologies is proposed in this paper to solve the main problems of present WebGIS. Finally, a complete discussion and research are made theoretically, which aims at constructing a fundamental information framework based on distributed geospatial information service.

Key words: WebGIS, XML, GML, Web services, SOAP, distributed geospatial information

摘要： 分析了现有WebGIS系统中常见的两种体系结构，对其中存在的问题进行了深入的讨论，指出无法实现异构空间数据的共享与功能上的互操作是阻碍WebGIS进一步发展的两大障碍.开放式的WebGIS是今后的发展方向，本文基于最新的Web技术提出一个七层结构的分布式空间信息服务互操作模型，为解决现有WebGIS中的缺陷，构建以分布式空间信息服务为核心的基A信息服务平台做了理论上的探讨与研究.

关键词: WebGIS, XMI, GML, Web服务, SOAP, 分布式空间信息服务