摘要
研究并分析了现有GIS应用系统的不足,根据目前GIS应用发展的主要技术趋势,提出了基于云计算的云GIS的服务层次模型和关键技术。针对云计算分布式异构环境下空间数据资源的特点,提出了云GIS空间数据资源的两种集成方法;根据现有GIS应用技术特点,提出云GIS功能资源的集成与互操作技术,并与工作流结合GIS Web服务组合技术的云GIS搭建式应用开发技术。最后,提出云GIS应用的3种部署模式。
The shortcomings of existing GIS applications are analyzed;Cloud GIS services layered model and key technologies are pro-posed based on the current major GIS application development trends.Considering the features on the spatial data resources in distributed heterogeneous environment,two integration methods are presented.Based on the GIS technical characteristics,the integration method of heterogeneous functionality resources and the application development technique based on workflow technique combined with GIS web service chaining are demonstrated.Finally,three deployment models of the cloud GIS applications are presented.
出处
《计算机工程与设计》
CSCD
北大核心
2011年第4期1342-1346,共5页
Computer Engineering and Design
关键词
云GIS
地理信息系统
云GIS服务
异构资源集成
工作流
cloud GIS
GIS
cloud GIS services
integration of heterogeneous geospatial resources
workflow
