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以服务为中心的网格体系结构OGSA
引用本文:都志辉,陈渝,刘鹏,王小鸽,杜江,周念生.以服务为中心的网格体系结构OGSA[J].计算机科学,2003,30(7):26-29.
作者姓名:都志辉  陈渝  刘鹏  王小鸽  杜江  周念生
作者单位:清华大学计算机系,北京,100084
摘    要:1 网格与网格体系结构网格(Grid)概念产生于20世纪90年代中期,是从电力网(Power Grid)概念借鉴过来的。网格的最终目的是希望大家能够像使用电力一样方便地使用分布在网络上强大而丰富的计算能力。网格计算(Grid Computing)就是基于网格的问题求解,它是在1995年的Ⅰ-WAY项目中提出来的。网格是目前越来越重要的研究领域,被称为是下一代的Internet,网格是一种关系科研、经济、社会、国防的重要国家基础设施,在国内外都引起了广泛的关注。网格的发展经历

关 键 词:Internet  网格  体系结构  OGSA  服务  计算机网络

OGSA--A Service Based Grid Architecture
DU Zhi-Hui CHEN Yu LIU Peng WANG Xiao-Ge DU Jiang ZHOU Nian-Sheng.OGSA--A Service Based Grid Architecture[J].Computer Science,2003,30(7):26-29.
Authors:DU Zhi-Hui CHEN Yu LIU Peng WANG Xiao-Ge DU Jiang ZHOU Nian-Sheng
Abstract: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.
Keywords:Grid computing  Grid architecture  OGSA (Open Grid Services Architecture)  Web Services  
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