The Information Technology Infrastructure Library (ITIL) is a set of detailed practices for IT service management (ITSM) that focuses on aligning IT services with business needs. It provides a comprehensive framework for planning, delivering, and supporting IT services throughout their lifecycle.

Origins and History

ITIL was developed by the UK Central Computer and Telecommunications Agency (CCTA) beginning in 1989 in response to growing dependence on IT and dissatisfaction with IT service quality across government agencies. The original ITIL v1 comprised over 30 volumes covering various aspects of IT service provision. ITIL v2 (2000-2002) consolidated this into a more manageable set of books organized around service support and service delivery. ITIL v3 (2007, refreshed 2011) reorganized the framework around a service lifecycle of five stages: Service Strategy, Service Design, Service Transition, Service Operation, and Continual Service Improvement. Ownership transferred from CCTA to the Office of Government Commerce (OGC) and eventually to AXELOS, a joint venture between the UK Cabinet Office and Capita. ITIL 4, released in 2019, modernized the framework with a Service Value System that incorporates Agile, DevOps, and Lean principles alongside traditional ITSM practices. PeopleCert acquired AXELOS in 2021 and now manages ITIL certification.

Core Concepts

ITIL 4 centers on the Service Value System (SVS), which describes how organizational components and activities work together to create value. Key elements include the Service Value Chain (six activities: plan, improve, engage, design and transition, obtain/build, deliver and support), Guiding Principles (focus on value, start where you are, progress iteratively, collaborate, think holistically, keep it simple, optimize and automate), Governance, Practices (34 management practices replacing the older “processes”), and Continual Improvement.

Practical Applications

ITIL is used to establish incident, problem, and change management processes, to define service level agreements and catalog IT services, and to create a culture of continual service improvement. It remains the most widely adopted ITSM framework globally.

Sources

  1. AXELOS (2019). ITIL Foundation: ITIL 4 Edition. The Stationery Office.
  2. Office of Government Commerce (2007). ITIL Service Strategy. The Stationery Office.
  3. Cannon, D. (2011). ITIL Service Strategy, 2011 Edition. The Stationery Office.