What is ITIL?

ITIL (Information Technology Infrastructure Library) is the most widely adopted set of best practices for IT service management. It provides a common vocabulary and proven processes for delivering and supporting IT services, covering areas such as the service desk, incident management, problem management, and change management. The current edition, ITIL 4, frames IT as a system of value-creating services and practices.

Why it matters: ITIL gives teams a shared language and a tested blueprint, so they avoid reinventing basic processes and can benchmark against an industry standard. The caution is to adopt it pragmatically: a large enterprise may implement many practices formally, while an SME might apply only the essentials, such as logging incidents, honouring SLAs, and managing changes carefully. ITIL is guidance, not a rulebook, and tools should support the process rather than dictate it.