Partitioning and Cloud Deployment of Composite Web Services under Security Constraints

In this paper, we propose an approach for deploying business processes on the cloud supporting security constraints, thereby ensuring sensitive data exchange. This approach uses partitionning techniques for fulfilling security requirements and optimizing communication costs. The partitions are deployed independently on different cloud platforms. Subsequently, these partitions depend on message exchange synchronization, which defines our choreography on the cloud. Moreover, we consider additional requirements related to data-dependencies and Quality of Service (QoS) disparities to optimize the execution of the outsourced process. Our approach is motivated by an insurance case study and implemented within an open source cloud platform.