Research on grid workflow model based on extended workflow nets

Based on the traditional workflow nets cannot meet the dynamic property of grid and express data flow in the model,the paper proposed a feasible grid workflow model called extended workflow nets(EWFN).The EWFN is adapt to the requirement of dynamic of grid.And it can explicitly model not only the control flow but also the data flow.Moreover,a case is applied to represent the feasibility and advantages by using the model.