Change management is ensuring all changes to your IT environment are managed, approved, and documented throughout the entire process. This ensures orderly software and hardware changes are made in your environment. When I worked at IBM in the 1990s, I was part of the Network Team supporting the IBM Southeast Geoplex. I really learned about the change management process while at IBM. I was mentored by two different people on changes who each had their own way of performing changes. The first person who trained me on doing changes would put in a ticket, get approval, and then we would show up during the change window and figure out and make the change. You don’t want to do this. The second person I worked with had a very different and much better approach. Of course, we would enter a ticket into the ITSM system. We would get approval to do the change during off hours. We would send out an email notification related to the change to potentially affected users...