Licences define the type of usage students are entitled to when accessing a title.
- Seat Credits - The ownership of a title by an individual student for a specific amount of time.
- Perpetual CU - Access to a title for granted students at one time. 'CU' means Concurrent Users, and reflects the number of students which can open a title at the same time.
- Perpetual ∞ - Access to a title for an unlimited number of students at once.