ITIL, formerly an acronym for Information Technology Infrastructure Library, is a set of detailed practices for IT service management (ITSM) that focuses on aligning IT services with the needs of business.

ITIL, formerly an acronym for Information Technology Infrastructure Library, is a set of detailed. The ITIL 4 Edition starts with the ITIL Foundation book, which was released on February 18th 2019. ITIL Service Transition: develops and improves capabilities for introducing new services into supported environments.

The Information Technology Infrastructure Library (ITIL) is a set of detailed practices for IT activities such as IT service management (ITSM) and IT asset management (ITAM) that focus on aligning IT services with the needs of business.

ITIL describes processes, procedures, tasks, and checklists which are neither organization-specific nor technology-specific, but can be applied by an organization toward strategy, delivering value, and maintaining a minimum level of competency. It allows the organization to establish a baseline from which it can plan, implement, and measure. It is used to demonstrate compliance and to measure improvement. There is no formal independent third party compliance assessment available for ITIL compliance in an organization. Certification in ITIL is only available to individuals. Since 2013, ITIL has been owned by AXELOS, a joint venture between Capita and the UK Cabinet Office.