Quality of Business Driven Service Composition and Utility Computing

IT systems are more critical to the success of business than ever before. As a best practice, organizations are documenting their business processes and corresponding dependencies on supporting IT systems. As a result they are better able to conduct cost-benefit analysis regarding business objectives and IT investments. In this paper we consider two recent technological advances service composition and utility computing, and describe how they impact best practice. We introduce the notion of quality of business (QoBiz) and present a methodology that uses QoBiz to continuously direct service composition and utility computing. To facilitate the execution of such continuous QoBiz-driven adaptation, we introduce a distributed architecture of control systems that manages service level agreements. Last, we consider requirements on modeling technologies in support of these advances in QoBiz-driven service-centric computing.