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{{Other uses|Itil (disambiguation){{!}}Itil}}
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{{Short description|Set of practices for Information Technology (IT) development, management and support.}}
{{Use British English|date=July 2012}}
{{Use dmy dates|date=March 2021}}
The ''' Information Technology Infrastructure Library''' ('''ITIL''')  is a set of practices and a framework for IT activities such as [[IT service management]] (ITSM) and [[IT asset management]] (ITAM) that focus on aligning IT services with the needs of the business.<ref>{{Cite web|title=it-infrastructure-library|url=https://www.ibm.com/cloud/learn/it-infrastructure-library|access-date=2021-04-21|website=www.ibm.com|language=en-us|archive-date=21 April 2021|archive-url=https://web.archive.org/web/20210421201813/https://www.ibm.com/cloud/learn/it-infrastructure-library|url-status=live}}</ref>
ITIL describes processes, procedures, tasks, and checklists which are neither organization-specific nor technology-specific. It was designed to allow organizations to establish a baseline.
It is used to demonstrate compliance and to measure improvements. There is no formal independent third-party compliance assessment available to demonstrate ITIL compliance in an organization. Certification in ITIL is only available to individuals and not organizations. Since 2021, the ITIL [[trademark]] has been owned by PeopleCert.<ref>{{cite web|title=PeopleCert completes Axelos acquisition|url=https://www.peoplecert.org/news-and-announcements/peoplecert-completes-axelos-acquisition|publisher=PeopleCert|accessdate=21 Jun 2021}}</ref>
==History==
Responding to growing dependence on IT, the UK Government's [[Central Computer and Telecommunications Agency]] (CCTA) in the 1980s developed a set of recommendations designed to standardize IT management practices across government functions, built around a ''process model''-based view of controlling and managing operations often credited to [[W. Edwards Deming]] and his [[PDCA|plan-do-check-act (PDCA)]] cycle.<ref>{{cite book |author1=David Clifford |author2=Jan van Bon |title=Implementing ISO/IEC 20000 Certification: The Roadmap |series=ITSM Library |publisher=Van Haren Publishing |year=2008 |isbn=978-90-8753-082-2}}</ref>
* In 1989, ITIL was released. It grew to a series of 30 books that recommended and provided IT best practices that focused on and catered for client and business needs.
* In 1993, the examination institute [[EXIN]] developed the first certification scheme for ITIL.<ref>{{cite web |title=EXIN Milestones |url=https://www.exin.com/about-exin/ |website=EXIN.com |access-date=3 April 2023}}</ref>
* In April 2001, the CCTA was merged into the [[Office of Government Commerce]] (OGC), an office of the [[HM Treasury|UK Treasury]].<ref>{{cite web |website=[[Office of Government Commerce]] (UK) |title=OGC - - CCTA Re-direct Page |access-date=2005-05-05 |url=http://www.ogc.gov.uk/index.asp?id=1878 |archive-url=https://web.archive.org/web/20050422073533/http://www.ogc.gov.uk/index.asp?id=1878 |archive-date=22 April 2005 |date=1 April 2003}}</ref>
* In 2001, ITIL version 2 was released.
* In May 2007, ITIL version 3 was released (also known as the ITIL Refresh Project) consisting of 26 processes and functions, now grouped into only 5 volumes, arranged around the concept of Service lifecycle structure. ITIL Version 3 is now known as ITIL 2007 Edition.
* In 2009, the OGC officially announced that ITIL Version 2 certification would be withdrawn and launched a major consultation as per how to proceed.<ref>{{cite web |website=[[Office of Government Commerce]] (UK)|access-date=2009-08-19  |title=ITIL |url=http://www.ogc.gov.uk/guidance_itil.asp |archive-url=https://web.archive.org/web/20090909012325/http://www.ogc.gov.uk/guidance_itil.asp |archive-date=9 September 2009 |date=2009-07-13}}</ref>
* In 2009 and 2011, researchers investigated the benefits of the ITIL implementation.<ref>{{Cite journal |last1=Marrone |first1=Mauricio |last2=Kolbe |first2=Lutz M. |date=2011-01-15 |title=Impact of IT Service Management Frameworks on the IT Organization |journal=[[Business & Information Systems Engineering]] |language=en |volume=3 |issue=1 |pages=5–18 |doi=10.1007/s12599-010-0141-5 |issn=1867-0202 |doi-access=free}}</ref><ref>{{Cite journal |last1=Pollard |first1=Carol |last2=Cater-Steel |first2=Aileen |date=2009-04-14 |title=Justifications, Strategies, and Critical Success Factors in Successful ITIL Implementations in U.S. and Australian Companies: An Exploratory Study |journal=Information Systems Management |volume=26 |issue=2 |pages=164–175 |citeseerx=10.1.1.631.8883 |doi=10.1080/10580530902797540 |issn=1058-0530 |s2cid=14096708}}</ref>
* In July 2011, ITIL 2011 was released.
* In 2013, ITIL was acquired by [[AXELOS]], a [[joint venture]] between [[Capita]] and the UK [[Cabinet Office]].<ref>{{Cite web |url=https://www.cio.com/article/2439501/infrastructure-it-infrastructure-library-itil-definition-and-solutions.html |title=What is ITIL? Your guide to the IT Infrastructure Library |first1=Sarah K. |last1=White |first2=Lynn |last2=Greiner |date=January 18, 2019 |website=[[CIO magazine|CIO]] |access-date=7 May 2019 |archive-date=24 April 2019 |archive-url=https://web.archive.org/web/20190424015940/https://www.cio.com/article/2439501/infrastructure-it-infrastructure-library-itil-definition-and-solutions.html |url-status=live }}</ref>
* In February 2019, ITIL 4 was released. With this release, the nomenclature of using a version number was replaced simply with the numerical number (v3 became 4) in a reference to the 4th industrial revolution. The main changes were: to consider end-to-end Service Management from holistic and value-centric perspectives, to align with philosophies such as Agile, DevOps, and Lean, and to reduce the emphasis on IT Service Management in favor of general Service Management.<ref>{{cite web |title=ITIL 4 |url=https://wiki.en.it-processmaps.com/index.php/ITIL_4 |website=IT Process Wiki |access-date=11 February 2022 |archive-date=14 February 2022 |archive-url=https://web.archive.org/web/20220214234627/https://wiki.en.it-processmaps.com/index.php/ITIL_4 |url-status=live }}</ref>{{ugc|date=June 2023}}
* In June 2021, PeopleCert completed the acquisition of Axelos.
==See also==
* [[Application Services Library]] – A similar framework for [[Application lifecycle management|application management]]
* [[Business Information Services Library]] (BiSL) – A similar framework for [[information management]] and [[functional management]]
* [[ISO/IEC 20000]] – An international standard for IT service management
* [[Tudor IT Process Assessment]] – A framework for assessment of IT service management maturity
==References==
{{Reflist|2}}
==External links==
{{Wikibooks|ITIL v3 (Information Technology Infrastructure Library)}}
* [https://www.ibm.com/topics/it-infrastructure-library IBM.com - "What is IT Infrastructure Library (ITIL)?"]
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[[Category:ITIL| ]]
[[Category:Information technology consulting]]
[[Category:Method engineering]]