Cloud computing architectures

In this paper, we put forward a basic taxonomy of cloud computing architectures. By this taxonomy, cloud computing architectures are essentially subdivided into Cloud Platform Architecture (CAA) and Cloud Application Architecture (CAA) which are linked via the cloud services available in the marketplace of Information Technology (IT) capabilities. We elaborate the constructs of CPA and CAA, respectively. Such a division between CPA and CAA is fundamental for cloud computing to serve as a potential foundation for delivering IT services as utilities over the Internet.