Overview of ITIL 4 Framework and Changes

This document is a guide detailing the updates and key components of ITIL 4, the latest version of the IT Service Management (ITSM) framework released in 2019. It outlines significant changes from the previous ITIL v3/2011 version, including a shift in focus from IT service management to a broader service management perspective. The guide explains the introduction of the Service Value System and Service Value Chain models, which emphasize value creation and co-creation. It also discusses the transition from 26 processes in ITIL v3 to 34 management practices in ITIL 4, highlighting the importance of continual improvement and governance. The document further elaborates on the guiding principles of ITIL 4, which include focusing on value, starting from the current state, and promoting collaboration. Additionally, it describes the three categories of management practices: general, service, and technical management practices, as well as the Service Value Chain, which outlines the key activities necessary for value realization.