ITIL has undergone many iterations over the years. Whilst some of this has involved changes to the core guidance, some of the more profound changes have been in the key concepts that ITIL espouses to IT Service management. These key concepts underpin the ways in which ITIL (and indeed ITSM in general) is intended to be embraced and used.
These concepts are aimed more broadly than within IT, and they encompass the perspectives of business leadership and strategy, down to the ways in which the services are consumed. There has been a paradigm shift in the understanding of value and the role that IT services plays in achieving it. Understanding this alternative view of value creation is critical to understanding how to use ITIL.
