OGSA-A Service Based Grid Architecture
Du Zhi · 2003
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.