Continual Service Improvement
The ITIL describes standard processes occurring in most organizations. Actually, an SDDC is a way of automating ITIL and enforce standardization and repeatable actions across the entire data center. Often ITIL is reduced to a specific toolset or action within the data center, for example, ticketing systems. But that is only a small fraction of what it does. It basically tries to provide a framework to standardize and streamline the delivery of IT services. Furthermore, it also provides options to predefine services so they can be delivered multiple times in a similar format.
Besides that, it also regulates what a change is and what the actions are in order to make changes. Data centers across the globe have made great use of these suggestions in order to streamline their IT tasks and make sure that maintenance can be predicted. Also, this kind of documented changes is necessary in order to prevent any unforeseen consequences when it comes to incorporate patches...