摘要
空间数据共享与互操作是空间信息网格的关键技术之一。分析了网格环境下中空间数据共享与互操作涉及的角色与关键环节,提出了空间数据共享与互操作框架,探讨了基于GML/SOAP的空间数据互操作表达技术,通过扩展OGSA-DAI实现了对分布、异构的空间数据的访问与集成,并开发了一个原型系统,验证了基于GML/SOAP/扩展的OGSA-DAI的空间数据共享与互操作技术的可行性。
Geospatial data sharing and interoperability are one of key technologies of Spatial Information Grid. Based on the analysis of the roles and the critical steps of the geospatial data interoperability in Grid Environment, a geospatial data sharing and interoperability framework was put forward. The representation technologies for geospatial data interoperation were presented in detail based on Geographical Makeup Language （GML） and Simple Object Access Protocol （SOAP） messages. OGSA-DAI technology was extended to access and integrate distributed heterogeneous geospatial data in Grid Environment. A prototype system reveals a good feasibility of the geospatial data interoperahility technolo- gies based on GML, SOAP and extended OGSA-DAI.
出处
《计算机科学》
CSCD
北大核心
2009年第1期96-100,共5页
Computer Science
基金
辽宁省教育厅高校科研计划项目(2006B056)
国家863计划项目(2006AA09169)资助
