Consider a college management system, where students, teachers, staff,

Head of staff are the actors. Students will take courses in each month,

whereas the teachers will conduct the same courses. Staffs will assign the

courses for the teachers. Head of staff approves the courses after they are

assigned to a specific teacher.

Considering the above situation design a use$-$case diagram. You must

create all the actors. You may assume some other activities performed by

these actors, but you must keep the activities mentioned above.