Modeling the interactions between cloud service providers

Cloud computing is becoming a widely adopted underlying technology for the provision of different types of services. As a paradigm building on a set of combined technologies, it enables service provision through the commoditization of IT assets and on-demand usage patterns. Within the application domain, services move away from the monolithic approach into an Internet-scale composite one by exploiting data, atomic services and infrastructures. In this paper an approach is presented for identifying and modeling the interactions between service providers. The presented approach can be exploited during the selection process for composite services based on various metrics that define the corresponding end-to-end Quality of Service (QoS).