Knows:
Student
Course
Does(Commands):
•Student’s name
•Student’s address
•Student’s social        security  number •Number of credit hours enrolled
•Course’s title
•Course’s section
•Course’s professor
•Course’s time
•Course’s room number
•Add a course to the student’s schedule •Drop a course from the student’s schedule •Calculate student’s fees
•Change room assignment
•Add a student to the roll
•Print a class roll
•Decide if the class is full