Geo-spatial Information Services Model Based on Information Flow
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摘要: 通过分析空间信息服务中的典型空间信息流动增值过程,建立了三种空间信息服务模式:线性传递的链状模式、共建共享的星状模式、基于Web2.0的网状模式。分析了每种模式的空间信息流模型与增值过程,并讨论了适合的空间信息服务应用,以及在Internet上未来会形成的空间信息增值服务网络,展望了空间信息服务的大众化发展方向。结合应用案例,分析了网状服务模式在网格GIS中的应用。Abstract: By analyzing the typical geo-spatial information flow process,we propose ward three GISMs: chain model based on linear transfer,star model based on co-construction,and sharing and net model based on Web2.0.The related spatial information applications for every model are also discussed.Moreover,we discuss the geo-spatial information value-added services network,which will be formed on the internet in the future,and the development and prospects of GIServices.The development mechanism of geo-spatial information service models is summarized.The application of geo-spatial information net model used in grid based GIS is also discussed.
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Keywords:
- spatial information services /
- information services model /
- Web2.0 /
- grid GIS
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