As the most widely adopted framework for IT service management in the world, it is hard to believe that
ITIL® is more than 20 years old. Its practical, no-nonsense approach to the identification, planning,
delivery and support of IT services to businesses has revolutionized IT service management, and
thousands of practitioners now implement ITIL best practice in their working environments. The latest
editions of ITIL from the Cabinet Office were published in July 2011, and these five publications (ITIL
Service Strategy, ITIL Service Design, ITIL Service Transition, ITIL Service Operation and ITIL Continual
Service Improvement) form the core guidance of best management practice.