These guiding concepts are central into the ITIL four framework and stand for a change in direction of a more flexible, shopper-centric, and built-in approach to IT service management as compared to ITIL V3. ITIL certification is structured into various levels, each representing a sophisticated degree of competence and expertise: https://enterpriseservicemanageme84703.blogdosaga.com/33280537/5-easy-facts-about-enterprise-service-management-esm-described