describe the Service Value System (SVS) and value chain. Providespecific examples of IT service management roles and practices usedto improve services. Include any practical application of thepractices you have experienced or that you think could be enactedto help an organization create value. As you describe roles, notehow they align with the ITIL definition for the role and how a RACImodel or process model could be used to explain the process morefully.

List sources please