关键词: 服务工作流, 业务频率, 预取模型, 依赖, 工作流日志

Abstract: To improve the whole workflow efficiency of service workflow,the important business related factors was mined by workflow logs,and the service pre-fetching models were proposed by combining with the main efficiency bottleneck of service call.The prefetching services model was computed by these models to improve the buffer hit ratio in Web service instantiated and to shorten the access delay.Simulation results indicated that this approach had the advantage of Web service workflow and provided a more accurate prediction for Web service buffer.

Key words: service workflow, business frequency, pre-fetching model, dependency, workflow logs