Quality measurement and scheduling algorithm of grid service based on evidence reasoning

To figure out a unified measurement of Quality of Service(QoS) requirement was the key issue in QoS-based scheduling algorithm design.A evidence-reasoning-based multi-QoS measurement was put forward,which was incorporated into our grid scheduling algorithm(Priority Restrained Multiple QoS Minimum Completion Time(PRMQ-MCT)).Experimental results showed that this algorithm could greatly decrease the scheduling time span under multi-QoS requirement.