Starting from the discussion on the deployment and logic structure of cloud computing, this paper analyzes the integration challenges that cloud computing are facing. Further, this paper proposes a solution to the challenge through integrating SOA into cloud computing. An analysis of enterprise case is also performed to describe in detail how an enterprise, by the convergence of SOA and cloud computing, has been building its system integration architecture.%通过对云计算的部署模式及逻辑结构的探讨,分析其面临的集成挑战；并将SOA这一基于服务的架构融入云计算,作为建立云计算集成架构的一个解决途径；最后通过一个企业案例来具体分析和说明企业如何综合运用这两者来构建企业系统集成架构.
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