online education system database

[amir]

hi all
i have just started a project name Online Education System

Requirements:
-> Admin will log in and create student login and assign them course like MBA, MS. ( one student one course )
-> Student will login using his/her login(roll#) and password.
-> I want that a student who belongs to MBA could access to only MBA course materials like (books or chapters)

Plz help me in designing this database.

Thanx n Regards,
Aamir.