| 基于网格虚拟组织的空间数据基础设施探讨 |
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| 作者单位： | 信息工程大学测绘学院，72946部队 |
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| 摘 要： | 网格(Grid)是新型高效的分布式计算和资源管理基础设施。分析了空间数据基础设施(Spatial Data In-frastructure,SDI)与网格技术的集成需求,扩展了传统SDI层次体系,提出一种新的SDI—基于网格虚拟组织的SDI(Virtual Organization SDI,VOSDI)。VOSDI突破原有SDI以明确的地区或地域分类分层组织的方式,通过VO对地理上分布的人员、资料及空间信息进行有效组织和整合,具有灵活高效的特性。对VOSDI的功能、特性进行探讨后,进一步提出VOSDI的概念模型,并指出VOSDI实施中可能存在的问题。
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| 关 键 词： | 空间数据基础设施(SDI) 网格 虚拟组织 VOSDI 空间数据共享 |
Research on Spatial Data Infrastructure Based on Grid Virtual Organization |
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| Authors: | ZHAO Shan WANG Jia-yao WANG Chong |
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| Institution: | ZHAO Shan1,2,WANG Jia-yao1,WANG Chong2 |
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| Abstract: | Grid is a novel and high performance infrastructure for distribute computing and resource managing.The paper discussed the integration requirements between SDI and Grid,interrupted the traditional layered SDI and promoted a new conception of VOSDI(Virtual Organization SDI),which was a SDI based on Virtual Organization and Grid technology.Traditional SDI organized resource by area while VOSDI removed the bounds and integrates people,datum,and spatial data together effectively and flexibly.After analyzing the function and characteristic of VOSDI,we constructed a conceptual model and assumed some problems which were likely to exist in VOSDI. |
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| Keywords: | spatial data infrastructure(SDI) grid virtual organization VOSDI spatial data sharing |
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