关键词: 云计算，QoS，经济模型，资源调度，SLA

Abstract: It is a major challenge for the cloud computing system to provide satisfied cloud application with QoS constraints. We proposed a cloud computing economic management model based on commodity market prototype, which implements the mapping from application service layer QoS to resource device layer QoS over the SLA negotiations between the users and providers in cloud computing market Finally, the utility function as management strategy was used to optimize resource scheduling.

Key words: Cloud computing, QoS, Economic model, Resource scheduling, SLA