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基于Web Services与网格技术,探讨了有利于协同服务的虚拟组织结构,构造了基于开放网格服务体系(OGSA)的虚拟组织成员实体模型和适应于网格技术的真正动态虚拟组织模型———含有广域调度服务中心的虚拟组织抽象模型;根据该抽象模型建立了基于OGSA的虚拟组织实际网络构造模型;提出了基于OGSA的虚拟组织内部协同服务的关键技术,即任务管理与调度问题,给出了一种既能满足网络服务需求又能降低服务成本的任务调度规则。
Based on Web Services and Grid Technology, this paper discusses the virtual organizational structure that is beneficial to collaborative services, constructs a virtual organizational member model based on Open Grid Services (OGSA) and a real dynamic virtual organizational model that adapts to grid technology - - a virtual organization abstract model containing a wide-area dispatch service center; according to the abstract model, a real network construction model of the virtual organization based on OGSA is established; a key technology of the OGSA-based virtual organization internal coordination service is proposed, namely task management and scheduling, A task scheduling rule that can meet the demand of network service and reduce the cost of service is given.