You must submit a Graduation Application in OASIS, which lets the college know that you are finishing your degree program. You can also elect to participate in a commencement ceremony through this system.
You will receive emails from the Office of the Registrar, indicating that your degree progress has been monitored and that you are cleared to graduate if there are no outstanding requirements or issues. You will also receive emails from Student Affairs regarding commencement activities if you indicate on your application that you will attend the ceremony.
A thesis may be required for your program, and the thesis completion/acceptance form varies per department. These forms are routed to the Office of the Registrar, usually from the Graduate Program Director.