Following is a UML collaboration diagram for Library Management System. Here the process of issuing a book to a member is shown. The member first submits their card to the librarian, who then validates it. Once validated, the librarian queries the inventory management system, connected to the database, to check for the availability of book. If the book is available, the librarian stamps it and issues it to the member. Stick figures represent the librarian and member, rectangular shapes depict objects within the system, and arrow lines represent message exchanges between objects.
