Study On The Architecture Of Service Grid System And Scheduling Broker In It

In market economy, enterprises use all kinds of methods to increase productivity, reduce cost, and improve management, in reply to competition from opponent. Information Technology is always one of the most important means to increase the enterprises' competition ability. With the development of Information Technology, requirement for integration of existent information resources inner- and inter-enterprises becomes more and more important. And it has drawn much attention from researchers. In recent years, researchers attach importance to two technologies, one is Grid Technology which takes more efficient usage of computing ability and storage as its original propose, and the other is Web Services Technology which focuses on inter-operation between deferent systems. Combine advantage of the two technologies and use them in Enterprise Information Resources Integration field, becomes subjects of many researchers.In this paper, we discuss a Service Grid system of large scale Enterprise Information Resources Integration, called EFCS, which means Enterprise Flexible Composition Services. Firstly, we introduce the system architecture of EFCS based on characteristics of Information Resources Integration and Service Grid Technology. Then, we discuss the most important part of integration process - flow integration process. We introduce the execution component of flow integration process - Schedule Broker and definition language of process.Flow integration is the most important in Resources Integration process, and the first step of flow integration is definition of flow. So, we define our process definition language - GPDL (Grid Process Description Language), based on existent technology. We extend BPEL to add assistance...