At Temple each faculty, staff, and student has a username used to access IT resources such as TUMail, TUportal, shared drives, etc. The username also appears as part of the e-mail address username@temple.edu.
At Temple one is allowed to create an alias to use in place of the username. Typically the alias is firstname.lastname, but you may have several aliases of your choice, as long as they are not being used by others.
To add/modify aliases, go to https://directory.temple.edu, click on "Update your entry", then log in. Adjust aliases as desired.
You may log into any properly configured CST Mac with an alias or username, but only wih your username into a Windows desktop.