...
How do you provide library access students and staff? Opt in? Or automatic to all students and staff?
How will your users will authenticate?
How will you update your patron information file?
How, and from where, do you want your users to access the library?
How you wish to notify your users when resources become available?
Mandatory fields can be configured. For more context go to the Overview of User Management and Ex Libris Knowledge Center, Managing Users.
...