IT Performance Management : Routledge : 9780750659260 : 0750659262 : 24 Oct 2003 : IT Performance Management addresses the way organizations should balance the demand and the supply of information technology, optimizing the cost and maximizing the business value of IT.In this book several aspects of IT performance management are described. The way this management is executed and the techniques, which should be used, depend on the maturity of the relationship between the IT function and the lines of business of an organization. The foundation of the authors' approach is based on the flow of money and related management objectives. However, performance management is primarily based on perceptions. Therefore, this book introduces the IT value perception model. This model describes four separate levels of perception for the business value of IT. If the demand and the supply of IT do not share the same perception level, the balance is lost, which will lead to friction and inefficiency withi