This document discusses use case diagrams for a library management system. It contains a use case diagram with actors such as students and librarians. The diagram shows use cases like adding a book, removing a book, searching for a book, issuing a book to a student, and returning a book. The document explains that use case diagrams provide clear communication, help identify requirements, and define system scope. They are an important tool for understanding user requirements.

1. Submitted To
Mr. Biraj Saha Aronya
Lecturer,
Department of Software
Engineering
Daffodil International University

8. Every requirement given in SRS is
a requirement of the software.
Every requirement has exactly
one interpretation.
Includes all functional,
performance, design, external
interface requirements; definition
of the response of the software to
all inputs.

17. USE CASE DIAGRAMS :
A use case diagram is a visual
representation of the interactions
between actors(users) and a system.
My diagram topic is Library
Management System.

18. AZAD RAHMAN
(STUDENT)
RAFIQ ISLAM
(LIBRARIAN SIR)
Add Book
Remove Book
Search Book for Student
Issue Book to Student
Return Book from Student
Search for Book
View Borrowing History

19. DIAGRAM
| Library Management System |
(DIU)
Student
scans card scans barcode
| |
v v
Librarian Issue Book Book
^ ^ ^
| | |
verifies info & history verifies
availability
| |
v v
confirms issuance

20. The librarian scans the student
libraray card.

21. Importance
of Use Case
Diagrams
CLEAR
COMMUNICATION
IDENTIFY
REQUIREMENTS
SYSTEM SCOPE
DEFINITION

26. Use Cases are a great tool for understanding user
requirements.
They consist of actors, scenarios, preconditions, and
postconditions.
They can be represented visually using diagrams.
They play a crucial role in Agile development.