A Fuzzy Preferences Method of QoS-Awared Grid Workflow Schedule

Grid workflow schedule requires sophisticated expertise of domain in order to automate the process of managing workflows and its components. QoS-aware selection and execution of grid workflow can fulfill customer´s expectations, a new preference method is proposed to design the grid workflow schedule. The grid workflow matching relation is achieved by mobile agent negotiation based on projection-join closure to capture such message situations. We propose a fuzzy preferences evolutionary algorithm to resolve the QoS-aware selection optimization. The simulation results show that the approach can significantly improve the performance. It adapts well to the changes of environments.