Use Case Diagram – Library Management System
The use case diagram are usually referred to as behavior diagram used to describe the actions of all user in a system.
All user describe in use case are actors and the functionality as action of system.

Use Case Diagram Library System Project
In above library system project there are two users Librarian and Student. Both Librarian and Student can do all activities after login in to library management system.
Librarian Activity :
- Add Publication
- Add books
- Add Branch
- Add Student
- Issue Book
- Return Book
- Apply Penalty
- Change Password
- View Reports
Student Activity :
- Search Book
- Issue / Return Book Report
- Penalty Report
- Change Password