Split over several levels and modules, ITIL covers everything from service strategies to continuous improvement, enabling practitioners to not only adapt IT service infrastructures, but also prepare for further changes down the line. This can help to foster sustainable productivity for businesses and create a better, more consistent experience for customers.
ITIL 2007 edition (previously known as ITIL Version 3) is an extension of ITIL Version 2 and fully replaced it following the completion of the withdrawal period on 30 June 2011. ITIL 2007 provides a more holistic perspective on the full life cycle of services, covering the entire IT organization and all supporting components needed to deliver services to the customer, whereas ITIL Version 2 focused on specific activities directly related to service delivery and support. Most of the ITIL Version 2 activities remained untouched in 2007, but some significant changes in terminology were introduced in order to facilitate the expansion.