OGSA(Open Grid Services Architecture) is called the next generation grid architecture. It evolves from theearly five levels hourglass model architecture. OGSA consists of two key technologies: grid technology and Web ...OGSA(Open Grid Services Architecture) is called the next generation grid architecture. It evolves from theearly five levels hourglass model architecture. OGSA consists of two key technologies: grid technology and Web Ser-vice technology. OGSA gives emphasis to services and all things in OGSA are services. After explaining the basic ideaof OGSA,this paper introduces the composition of OGSA-based hosting environment and virtual organization. Todemonstrate the process of how an application is executed in an OGSA-based environment,the paper gives an exampleof data mining which illustrates the basic functions and working mechanism of OGSA. A brief comparison to relatedgrid architecture is also given in the paper. The paper concludes that OGSA is not mature and it needs improvementtogether with related technology and grid applications.展开更多
随着网格应用的不断发展,对资源的要求也越来越多,如何有效地利用协调资源的问题越来越突出。Open Grid Service Architecture(OGSA)提出了网格服务的概念,把资...随着网格应用的不断发展,对资源的要求也越来越多,如何有效地利用协调资源的问题越来越突出。Open Grid Service Architecture(OGSA)提出了网格服务的概念,把资源都当作是服务来看待。该文在网格Portal的实现中,采用了这种面向服务的思想,从Portal的层面上实现了Grid Service,向用户提供了一个有效利用网格资源的手段。而通过基于Portlet的框架,可以让用户定置自己的网格应用。展开更多
为了描述网格服务挖掘(GSM)中的网格服务组合,提出了一种基于I/O的网格服务自动机模型GSAM(Grid Service Automata Model).该模型定义了两种类型的网格服务自动机GSA(Grid Service Automata)———描述服务功能的网格服务功能自动机GSFA...为了描述网格服务挖掘(GSM)中的网格服务组合,提出了一种基于I/O的网格服务自动机模型GSAM(Grid Service Automata Model).该模型定义了两种类型的网格服务自动机GSA(Grid Service Automata)———描述服务功能的网格服务功能自动机GSFA(Grid Service FunctionalAutomata)和描述服务间交互通道的网格服务通道自动机GSCA(Grid Service Channel Automata).同时给出网格服务兼容签名、组合签名、隐藏操作的定义,以及几个相关的定理来精确刻画网格服务的组合过程和方法.文中还举例说明了如何利用GSAM对GSM中的网格服务共享存储器系统进行建模.结果表明,所提出的模型能够精确描述网格服务的组合及其形式化的推导.展开更多
文摘OGSA(Open Grid Services Architecture) is called the next generation grid architecture. It evolves from theearly five levels hourglass model architecture. OGSA consists of two key technologies: grid technology and Web Ser-vice technology. OGSA gives emphasis to services and all things in OGSA are services. After explaining the basic ideaof OGSA,this paper introduces the composition of OGSA-based hosting environment and virtual organization. Todemonstrate the process of how an application is executed in an OGSA-based environment,the paper gives an exampleof data mining which illustrates the basic functions and working mechanism of OGSA. A brief comparison to relatedgrid architecture is also given in the paper. The paper concludes that OGSA is not mature and it needs improvementtogether with related technology and grid applications.
文摘随着网格应用的不断发展,对资源的要求也越来越多,如何有效地利用协调资源的问题越来越突出。Open Grid Service Architecture(OGSA)提出了网格服务的概念,把资源都当作是服务来看待。该文在网格Portal的实现中,采用了这种面向服务的思想,从Portal的层面上实现了Grid Service,向用户提供了一个有效利用网格资源的手段。而通过基于Portlet的框架,可以让用户定置自己的网格应用。
文摘为了描述网格服务挖掘(GSM)中的网格服务组合,提出了一种基于I/O的网格服务自动机模型GSAM(Grid Service Automata Model).该模型定义了两种类型的网格服务自动机GSA(Grid Service Automata)———描述服务功能的网格服务功能自动机GSFA(Grid Service FunctionalAutomata)和描述服务间交互通道的网格服务通道自动机GSCA(Grid Service Channel Automata).同时给出网格服务兼容签名、组合签名、隐藏操作的定义,以及几个相关的定理来精确刻画网格服务的组合过程和方法.文中还举例说明了如何利用GSAM对GSM中的网格服务共享存储器系统进行建模.结果表明,所提出的模型能够精确描述网格服务的组合及其形式化的推导.
