ITIL is the pre-eminent framework for managing IT service delivery globally. ITIL is a service lifecycle model that prescribes processes during the design, development, delivery and support of IT services. Businesses that adopt the ITIL framework ensure their services are delivered to a high standard. An ITIL certification course is a qualification in the field of IT service management. ITIL Foundation is the entry-level certification, followed by ITIL 4 Managing Professional, ITIL 4 Strategic Leader, and finally ITIL 4 Master.