ITIL certification guide: Costs, requirements, levels and paths
The IT Infrastructure Library (ITIL) offers best practices for delivering IT services using a systematic approach to IT service management (ITSM). The ITIL 4 was updated by Axelos in February 2019 to include a stronger emphasis on maintaining agility, flexibility and innovation in ITSM, while still supporting legacy networks and systems. ITIL 4 was rolled out over the course…