Over the past decade there has been a huge shift in the way we perceive and utilize computing resources. Previously, computing needs were typically achieved by using localised resources and infrastructures and high-end scientific calculations would be performed on dedicated parallel machines. However, nowadays, we are seeing an increasing number of wide-area distributed-computing applications, which has led to the development of many different types of middleware, libraries and tools that allow geographically distributed resources to be unified into a single application. This approach to distributed computing has come under a wide number of different names, such as metacomputing, scalable computing, global computing, Internet computing and, more recently, Grid computing.2
KeywordsGrid Computing Virtual Organization Common Object Request Broker Architecture Globus Toolkit Open Grid Service Architecture
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