Over the past 30 years, ITIL has continued to provide comprehensive, practical and proven guidance for establishing an IT Service Management System, encouraging consistency and continuous improvement for businesses using and delivering IT services. .
For years, ITIL was the abbreviation for Information Technology Infrastructure Library, but the full name was eventually removed and replaced simply with ITIL. ITIL is the foundation of ISO20000, but there are a few key differences.
ITIL has been adopted by many organizations, with millions of certified ITIL professionals around the world: ITIL 4 Foundation PDF download