Change Management seeks to minimize the risk associated with Changes, where ITIL defines a Change as “the addition, modification of removal of anything that could have an effect on IT services”. This includes Changes to the IT infrastructure, processes, documents, supplier interfaces, etc.
Change
The addition, modification or removal of anything that could have an effect on IT services. The scope should include changes to all architectures, processes, tools, metrics and documentation, as well as changes to IT services and other configuration items.
Links
https://wiki.en.it-processmaps.com/index.php/Change_Management