摘要
基于GIS服务的特点和动态服务聚合的应用实际,提出了一种基于工作流的GIS服务动态聚合实现方法,该方法通过引入服务群的概念,有效适应了GIS服务的动态变化性;提出了基于工作流的GIS服务聚合技术体系,界定了GIS服务聚合的研究内容和层次关系,为GIS服务动态聚合关键技术的研究提供了总体框架和顶层指导;参考工作流的研究成果,提出了动态服务聚合参考模型DSCRM,为开发聚合服务支撑平台以及在此基础上构造特定的服务聚合应用提供了可参考的计算模型。给出了一个GIS服务聚合应用实例来说明工作的可行性和有效性。
Based on the characteristic of GIS Web Service and dynamic Web Services Composition, this paper proposes the implementation mechanism of dynamic GIS Web Services Composition, which can effectively adapt to the dynamic characteristics of GIS Web Services and have vast data and CPU-intensive computing for the concept of Service Group（SG）. According to the mechanism, the paper proposes the technical architecture of GIS Web Services composition, providing holistic framework and top-level guidance for studying dynamic GIS Web Services composition technology. Based on the results of workflow research, this paper puts forward Dynamic Service Composition Reference Model （DSCRM）, which builds the handwork for the development of dynamic services composition system and the development of dynamic services composition application. The ideas of this paper have been used in city emergency disposal project successfully.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2008年第1期47-52,共6页
Journal of National University of Defense Technology
基金
国家“863”计划资助项目(2006AA12Z205)
教育部博士点基金资助项目(20059998012)
