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There are many grid workflow systems appeared in the past few years. But most of them involved in many developers and need a long time to implement them. It is very difficult to small groups to build a grid workflow system with good performance. In this paper we review the architecture and technologies used by those grid workflow systems briefly, and present the state of the art of our on going research...
In this paper, we propose a grid service workflow model framework based on stochastic Petri net (SPN) and equivalent methods to simplify the complex service workflow model to a simple model. In our models, the grid service can be of inner services and exterior services. The exterior service will be published to the users and the inner one needs not to be published. The models are expressive enough...
To adapt workflow management system to dynamically changing grid environment, Web services as well as agent technologies are incorporated to design a grid services workflow system framework based on colored Petri nets (CPN for short) in this paper. Firstly, we discusses in detail how to allocate resources intelligently through agent technologies, and then how Web services can be located and invoked...
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