OM helps to eliminate process gaps through visualization of interfaces for interaction. Most service providers using eTOM were able to reduce IT costs, improve the product quality, and reduce time to market the product. Use of eTOM as a founda- tion for process identification and classification ensures that the process repository will be able to evolve with industry best practices. Though eTOM has a functional area on enterprise process, this part is not defined to the level of granularity offered for telecom processes. So though eTOM can be considered a complete process framework, there are enterprise processes that will require more levels of definition. TeleManagement Forum definitions have eTOM level 0, level 1, level 2, and level 3 process maps. 22.3 ITIL The ITIL is a public framework describing best practices for IT service manage- ment. ITIL facilitates continuous measurement and improvement of the business process thereby improving the quality of IT service. ITIL was introduced due to a number of compelling factors in IT industry: Increase in cost of maintenance of IT services. Increase in complexity due to changes in IT infrastructure technology. The frequent change management required in IT services. Fundamentals of EMS, NMS and OSS/BSS Emphasis from customer on quality of IT services. Flexibility to align the IT services based on business and customer needs. Need to reduce the overall cost of service provisioning and delivery. The ITIL processes represent flows in a number of key operational areas. The main emphasis is on the stages in service life cycle, namely: Service strategy: IT planning is the main activity in service strategy. The type of service to be rolled out, the target customer segment, and the resource to be allocated is part of the strategy. Market research becomes a key ingredient in service strategy where the market competition for the service and plans to create visibility and value for the service is formulated. Service design: This stage in the service life cycle is to design servi