Business and IT are two distinct disciplines. In most enterprises, they are also interdependent but not necessarily cooperative. Cloud service management decisions need both business and technical input to be made wisely. Cloud utility computing is a significant change to the way IT works. A thorough understanding of what utilities are and how they work is required by both business and IT because they influence many decisions. The development of electrical and other utilities is frequently compared to the development of utility computing. Their similarities and differences help explain the value and difficulty of cloud computing.