Grid service workflow is a queue of member services with time constraints to achieve a specific goal. In the grid workflow, scheduling is an important issue. It not only affects the execution and efficiency of grid workflow, but also revolves the resource management.This thesis first gives the formal description of grid service workflow, and it
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The problem of solving fast collaboration between many related enterprises has always been an important research hotpot in computer network research. At present, the rapid development of network technology is in dire need of a new interconnected network structure which can provide a unified coordination mechanism. In recent years, the putting forward of cloud computing
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Grid is a distributed, heterogeneous, open net environment. Resource selection and scheduling strategy is one of the key issues in grid environment. At present, only the resource node authentication is considered in many grid systems, which is insufficient to ensure the safety and reliability of the grid. Scheduling task on unreliable, disabled resources may increase
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Medical Image Grid (MedImGrid) is one of the important applications of grid technology. Currently, the heterogeneities, distribution and dynamicity of web services prohibit WSRF (Web Service Resource Framework) of grid to exert its excellences. In this paper, we proposes the SOV(Service Oriented Virtualization) technologies for MedlmGrid, which uses web service as the joint-point of grid,
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The internet based information system is becoming increasingly important for the human society. The e-business, e-government and e-society applications are widely deployed on the internet, and various new computing techniques such as cloud, grid and peer-to-peer computing, have made the internet-based applications more convient and efficient. Althougth the internet can result in great benefit, it
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In recent years, China has begun to promote triple nework convergence of the telecommunications network, Internet and cable television network. The ongoing triple nework convergence strategy allows operators to operate services which were restricted by government regulations in the past and enable them to become full service/media operators. As the two-way transformation of cable television
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