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| 引用本文： | 龚震宇,贾利民.һ�ֲַ�ʽ�ռ���Ϣ����Ļ�����ģ��[J].交通运输系统工程与信息,2005,5(6):62-67. |
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| 作者姓名： | 龚震宇 贾利民 |
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| 作者单位： | 1.?й?????????о???о???????????100081;2.??????????????????????100081 ; |
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| 基金项目： | 国家自然科学基金重点资助项目(60332020). |
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| 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.
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| 关 键 词： | WebGIS XMI GML Web???? SOAP ?????????????? |
| 文章编号： | 1009-6744(2005)06-0062-06 |
| 收稿时间： | 2005-9-21 |
| 修稿时间： | 2005年9月21日 |
An Interoperation Model of Distributed Geospatial Information Service |
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| GONG Zhen-yu,JIA Li-min.An Interoperation Model of Distributed Geospatial Information Service[J].Transportation Systems Engineering and Information,2005,5(6):62-67. |
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| Authors: | GONG Zhen-yu JIA Li-min |
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| Institution: | 1.Postgraduate Department,China Academy of Railway Sciences,Beijing 100081,China;2. Collage of Transportation, Beijing Jiaotong University, Beijing 100081,China ; |
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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. |
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| Keywords: | WebGIS XML GML Web services SOAP distributed geospatial information |
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