Abstract: Grid Computing enables large-scale resource sharing by integrating the distributed resources. Scheduling of application tasks to the resources is the central to the grid computing system.We proposed the schedule work flow tasks to the dynamic grid computing resources based on rescheduling methods.Nowadays,scheduling tasks on grid resources all are fully belongs to a class of NP-hard problems. The dependent tasks is fully meet the performance requirements on Quality Of Service (QOS).The Work Flow Scheduling (WFS) algorithm of grid application is consist of workflow tasks.

Keywords: Work Flow, Tasks, Scheduling, Resources, QOS.