Discussion. Consider the following description of a university system where prof

Discussion.
Consider the following description of a university system where professors teach
courses in which students can enroll:
Each professor has a name, address, phone number, email address, and salary. A
student also has a name, address, phone number, and email address. A student also has
an average mark (of the final marks of his or her course). Each person in the university
has a unique ID.
A Course has a name, a number, and fees. When a student is enrolled in a course, the
marks for this enrolment are recorded, and the current average, as well as the final mark
(if there is one), can be obtained from the enrolment. Each student can obtain a list of
courses he or she is enrolled in. Professors teach courses. Each course has at least one
and at most three teachers.
a) Draw a class diagram for this university.
b) Add attributes and methods (operations) when necessary.