Question

• Create a set of use case documents and use case diagrams for a university library borrowing system (Do not worry about catalogue searching etc.)
• The system will record who has borrowed what books. Before someone can borrow a book, he or she must show a valid ID card that is checked to ensure that it is still valid against the student database maintained by the registrar's office.
• The system must also check to ensure that the borrower does not have any overdue books or unpaid fines before he or she can borrow another book.

Answer 1

1)Use case document for a university library borrowing system:

Use Case Name: Borrow Book	ID:01	Level of Importance: High
Primary Actor: Borrower
Stakeholders: Borrower & Librarian
Brief Description: This use case describes the procedure for borrowing a book from the university library.
Trigger: Borrower gets the book to be issued to the librarian.
Relationships: Include: Book Availability, Student Membership, Overdue Books, Fine Paid Association: none. Extend: none. Generalization: none. Pre-conditions: Student should be a member of the library. Book should be available in the library. Post-conditions: none.
Flow of Events: Borrower gets the book to be issued to the librarian. Librarian checks the student ID card for membership against the student database maintained by the registrar's office. Librarian checks for any overdue books on the borrower’s name. Librarian checks for any unpaid fine against the borrower. Librarian issues the book to the borrower.

2)Use case diagram for a university library borrowing system: