关键词: 商务工作流, 监测点, 服务质量, 吞吐量

Abstract: Owing to the reason that the dynamic of cloud computing may affect the Quality of Service (QoS) of business workflow,the business workflow execution should be monitored,a novel checkpoint selection strategy for time-constrained instance-intensive business workflow was proposed.According to the magnitude of business workflow activities and fitting function,the strategy could output the checkpoint position.Through the throughput based analysis of business workflow checkpoint,the strategy could predict the execution time of business workflow.Experimental results demonstrated that the proposed strategy could complete business workflow in cloud computing platform to guarantee satisfactory user's requirements.

Key words: business workflow, checkpoint, quality of service, throughput