What is ITIL service level management?

Service Level Management (SLM) exists to ensure that services fully align with the needs of the business and meet the customers' requirements for functionality, availability and performance. The goal is to ensure that levels of service are negotiated and agreed with customers and all services are delivered to the agreed service levels defined in terms of agreed performance indicators. SLM must also ensure that services are continually improved where improvements are required by the customer and can be justified in terms of their cost.