Don’t take shortcuts with a rename, no matter how minor it seems. Use the formal rename process, which preserves the old name and correctly replaces it in all the hundreds of places it may be in your system. Changing the Person Document alone will not cover all your bases. This user’s name — her fully qualified name “Jane Doe/OU3/OU2/OU” is in a lot of places in your system. To Notes, a changed from “Jane” to “Jodi” is as significant as a change from “Doe” to “Roe.” This is the key to her access to whatever you use Notes to access. In our system it’s calendars, departmental databases, Resources, parts of our Intranet, etc.
If you have never done a Notes rename before and you are the Notes Administrator who is supposed to be doing such things, then you need to find out how things are done in your company. We do have a few names in our Address Book for very limited access purposes, and they can be changed in the Person doc. But most of them should be changed through the Actions menu in the Address Book, or whatever process you may have for doing a standard Notes rename.