The IT Infrastructure Library (ITIL) refers to a set of comprehensive, consistent and coherent codes of best practice for IT Service Management. It comprises a library of over 40 books developed by the Central Computer and Telecommunications Agency. (CCTA) in the United Kingdom.

The ITIL methodology was developed in the late 1980's in response to the recognition that organizations were becoming increasingly dependent on Information Systems (IS). The objective of the CCTA in developing ITIL was to promote business effectiveness in the use of IS due to increasing organizational demands to reduce costs while maintaining or improving IT services. The ITIL concepts for best practices, through the involvement of leading industry experts, consultants and practitioners remain the only holistic, non-proprietary methodology available. As a result, it is quickly becoming the global benchmark by which organizations measure the quality of IT service management.

Each book in the Infrastructure Library covers a specific process of IT Service Management and describes its relationship to other processes. Each book can be read, and the process implemented, independently of the others. The overall provision of IT services, however, can be optimized by considering each process as part of the whole, such that the whole is greater than the sum of its parts. This holistic approach suggests that organizations are likely to gain the most benefit from implementing all processes rather than some processes discretely.

The most popular ITIL books are contained in the two sets representing key elements of IT Service Management. The Service Support and Service Delivery sets describe the processes that any IT service provider must address to enhance the provision of quality IT services for its customers. In addition, these sets form the basis of the certifications granted by the Netherlands Examination Institute for IT, EXIN http://www.exin.nl/eng, and the Information Systems Examinations Board (ISEB).

Many organizations have embraced the ITIL concept because it offers a systematic and professional approach to the management of IT service provision. There are many benefits to be reaped by adopting the guidance provided by ITIL. Such benefits include but are not limited to:

• Improved customer satisfaction
• Reduced cost in developing practices and procedures
• Better communication flows between IT staff and customers
• Greater productivity and use of skills and experience

ITIL Links