以服务为中心的网格体系结构OGSA  

OGSA-A Service Based Grid Architecture

作　　者：都志辉[1] 陈渝[1] 刘鹏[1] 王小鸽[1] 杜江[1] 周念生[1] 

机构地区：[1]清华大学计算机系,北京100084

出　　处：《计算机科学》2003年第7期26-29,共4页Computer Science

摘　　要：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.OGSA(Open Grid Services Architecture) is called the next generation grid architecture. It evolves from the early five levels hourglass model architecture. OGSA consists of two key technologies: grid technology and Web Service technology. OGSA gives emphasis to services and all things in OGSA are services. After explaining the basic idea of OGSA, this paper introduces the composition of OGSA-based hosting environment and virtual organization. To demonstrate the process of how an application is executed in an OGSA.based environment ,the paper gives an example of data mining which illustrates the basic functions and working mechanism of OGSA. A brief comparison to related grid architecture is also given in the paper. The paper concludes that OGSA is not mature and it needs improvement together with related technology and grid applications.

关 键 词：INTERNET 网格 体系结构 OGSA 服务 计算机网络 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术]