🎓 Student Projects (College Reports) · Use Case
Library Management System Use Case Diagram
Who uses a college library system and what each of them can do: members, the librarian and the system administrator.
Drawing diagram…
What this diagram shows
- Three actors with their own goals
- Issue and return books, with fines as an extension
- Ready for the "Use case diagram" section of a project report
Prompt used
Use case diagram for a library management system: a member can search the catalogue, reserve a book, borrow and return books and pay fines; the librarian can add and update books, issue and return books, manage members and see overdue reports; the admin manages librarian accounts and settings. Paying a fine extends returning a book; issuing a book includes checking member eligibility.
Mermaid code
flowchart LR
member(["👤 Member"])
librarian(["🧑💼 Librarian"])
admin(["🛡️ Administrator"])
subgraph SYS ["📚 Library Management System"]
UC1(["Search catalogue"])
UC2(["Reserve book"])
UC3(["Borrow book"])
UC4(["Return book"])
UC5(["Pay fine"])
UC6(["Add or update books"])
UC7(["Issue book"])
UC8(["Check member eligibility"])
UC9(["Manage members"])
UC10(["View overdue report"])
UC11(["Manage librarian accounts"])
end
member --> UC1
member --> UC2
member --> UC3
member --> UC4
librarian --> UC6
librarian --> UC7
librarian --> UC9
librarian --> UC10
admin --> UC11
UC7 -.->|"includes"| UC8
UC5 -.->|"extends"| UC4Related templates
Library Management System ER Diagram
The database of a library system: books and their copies, authors, members, loans, reservations and fines, with keys and cardinality.
Library Management System Data Flow Diagram (Level 1)
How data moves through a library system: members and the librarian, the main processes, and the data stores they read and write.
Library Management System Class Diagram
The main classes of a library system with attributes, methods and UML relationships.
Library Management System Sequence Diagram (Issue a Book)
The steps when a member borrows a book: checks, loan record and the copy status update.
Online Examination System Use Case Diagram
What students, examiners and the administrator do in an online examination system.
Online Examination System ER Diagram
Database design for online exams: courses, exams, questions and options, attempts, answers and results.