1 You are designing Expense Reimbursement System ERS An empl

1. You are designing “Expense Reimbursement System (ERS).” An employee enters his/her work related expenses into the system, and his/her Manager reviews the expenses. Based on the review, the Manager either approves the expense submission or rejects the expense submission. Finance officers analyze the expenses periodically, to identify opportunities for cost reduction. Based on this description, the complete list of Use Cases and actor combinations for this system are:

A) “Submit Expenses” with actor Employee,” “Approve Expenses,” with actor Manager, “Reject Expenses” with actor Manager, “Analyze Expenses” with actor Finance Officer

B) “Submit Expenses” with actor Employee,” “Approve Expenses,” with actor Manager, “Reject Expenses” with actor Finance Officer, “Analyze Expenses” with actor Finance Officer

C) “Submit Expenses” with actor Employee,” “Approve Expenses,” with actor Manager, “Reject Expenses” with actor Manager, “Analyze Expenses” with actor Manager

D) “Submit Expenses” with actor Manager,” “Approve Expenses,” with actor Manager, “Reject Expenses” with actor Manager, “Analyze Expenses” with actor Finance Officer

E) “Submit Expenses” with actor Manager,” “Approve Expenses,” with actor Employee, “Reject Expenses” with actor Manager, “Analyze Expenses” with actor Finance Officer

2. In a Course registration system, a student registers for courses. A student can register for more than one course and must register for at least one course. Also, the school has introduced new courses and it is possible that there may not be any enrollments yet for those courses.

3. In a Course registration system, a student registers for courses. A student can register for more than one course and must register for at least one course. Also, the school has introduced new courses and it is possible that there may not be any enrollments yet for those courses.

Solution

1. correct answer:

A) “Submit Expenses” with actor Employee,” “Approve Expenses,” with actor Manager, “Reject Expenses” with actor Manager, “Analyze Expenses” with actor Finance Officer

Explanation:

Here, Only Employee can submit the expense. Only Manager can either approve the expense or reject the expenses. Only finance offier can analysze the expense. Only A option staties all the 4 conditions.

2. Correct answer A

Becuase Alll students will be associated with atleast one course. But all course like new one may not have any student associated with them

3.B

Because Each student must be associated with atleast one course and can have many course.

where as new course may not have associated with any student and there could be multiple student associated with same course