| With the development of information technology,enterprises get more and more exigent on the management of resources and the control of business process.The existing information management technologies can not satisfy people of sharing the rescourses in a large scale.Besides information resource,it should also include computing resource,bandwidth resource,and storage resource and so on.Traditional workflow products have many insufficiencies,for instance,lack of the interoperability,lack of the support for concurrent access and error control.They encounter many difficulties in managing complex business processes inside the enterprise and those of cross-enterprise.As a new generation infrastructure built upon Internet,grid attempts to combine the high-speed Internet,high-performance computer,large database,sensor,and long-distance equipment together so that people can make use of diverse resources pellucidly.Several years after it's presented,grid has aroused widespread attention from the researchers at home and abroad.Based on Web Service,the workflow products aim at standardizing the interface and making the enterprises exchange information without any obstacles.It has gained support from some giant manufacturers like IBM and Micro Soft and it develops rapidly. It has become a hot study topic recently how to have the grid technology and the workflow technology integrated and achieve rational management for the resource and the business.As a new generation managerial framework of grid system resources,WSRF implements a standard Web Service criterion.WS-BPEL,as a language of the execution of business process,gets support from many manufacturers. Having carried out" analysis on the existing grid workflow products,this paper designs a framework of grid workflow system based on WSRF and WS-BPEL technologies.It makes the combination of the grid technology and the workflow technology come true and has realized the grid workflow engine's core components. |
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