UML: Library Information System

Assignment: Assume that we have identified the following actors and goals:

Actor	Goals	Notes
Librarian	Loan book to patron	Authenticate patron, identify book, mark book as on-loan in catalogue, and add book to list of books on loan to this patron, with a specific due date. If patron's membership has expired, either refuse to lend book or enter "Manage patron information" use case to renew membership.
	Renew book	Identify patron and book, assess fine if overdue, and revise due date. Patron's membership status is checked. Renewal can be done by telephone.
	Process book returned by patron	Identify book, mark as available, and remove from list of books loaned to patron; if book is overdue, assess patron a fine.
	Handle book reported as lost	Identify book, mark as lost, and assess patron a fine.
	Manage patron information	Create, retrieve, update, or delete patron information.
Cataloguer	Process new book	Add new record to online catalogue, or add a copy to an existing record if book is a duplicate.
Patron	Search for a book in the online catalogue	Enter a search string, specifying whether to search for a name, a title, or a subject, to see a list of books matching the search string, then select a book to see the full record for that book; or enter a call number, and see a display of the system record for the specified book.
Administrator	Send overdue book notices.	Request a list of all books that are overdue by more than some minimum number of days.

Note that book ordering and accessions are not currently included in the scope of the automated library information system.

1. Create a UML Use Case Diagram to depict the set of actors and use cases listed above.