Library Management System

Project Purpose

The purpose of this project is to apply the OOP and OOAD concepts participants learned during the training sessions. They will practice identifying classes, responsibilities, relationships, use cases, business rules, and UI flows.

Main User

The system is used directly by the Librarian. Members do not log in to the system. A member requests a book or returns a book physically, and the librarian performs the required operation in the system.

Flow 1: Search Book

1. Librarian opens the Search Book screen.
2. Librarian selects search type: title, author, or ISBN.
3. Librarian enters search text.
4. System displays matching books.
5. System shows copy-wise status.
6. Librarian can issue an available copy or view details.

Flow 2: Issue Book

1. Librarian selects an available book copy.
2. System opens the Issue Book screen.
3. Librarian searches member by ID or phone.
4. System displays member information.
5. Librarian confirms due date.
6. Librarian clicks Confirm Issue.
7. System creates a borrow record.
8. Book copy status becomes Borrowed.

Flow 3: Return Book by Copy ID / ISBN

1. Librarian opens Return Book screen.
2. Librarian enters copy ID or ISBN.
3. System displays borrowed book information.
4. System displays borrower details.
5. Librarian clicks Confirm Return.
6. System updates the borrow record.
7. Book copy status becomes Available.

Flow 4: Return Book from Member Profile

1. Librarian opens Member Details screen.
2. Librarian searches member.
3. System displays currently borrowed books.
4. Librarian clicks Return beside a book.
5. System displays selected book details.
6. Librarian confirms return.
7. System removes the book from current borrowed list.

Flow 5: View Member Details

1. Librarian searches member by ID, phone, or name.
2. System displays member profile.
3. System displays currently borrowed books.
4. System displays borrowing history.
5. Librarian can return a borrowed book from this screen.

Flow 6: View Book Details

1. Librarian searches book by ISBN, title, or author.
2. System displays book information.
3. System displays all physical copies.
4. System shows available and borrowed copies.
5. Librarian can issue available copy or view borrower information.

Issue Book Rules

• A book copy can be issued only if it is available.
• A borrowed copy cannot be issued again.
• A valid active member is required to issue a book.
• Due date must be greater than issue date.
• After issuing, the copy status becomes Borrowed.
• A borrow record must be created.

Return Book Rules

• Only borrowed books can be returned.
• Return date must be recorded.
• After return, the copy status becomes Available.
• The book should be removed from the member's current borrowed list.
• The borrowing history should still keep the old record.

Search Rules

• Librarian can search by title, author, or ISBN.
• Search result should show all matching books.
• Search result should show availability status.
• If borrowed, result should show borrower name and due date.

Member Rules

• Only active members can borrow books.
• Member profile should show currently borrowed books.
• Member profile should show borrowing history.
• Librarian can return a book from the member profile.

Book

• BookId
• Title
• Author
• ISBN
• Category
• Publisher

BookCopy

• CopyId
• BookId
• Status
• Available
• Borrowed

Member

• MemberId
• Name
• Phone
• Address
• Status

BorrowRecord

• BorrowId
• CopyId
• MemberId
• IssueDate
• DueDate
• ReturnDate
• Status

Suggested Beginner Classes

• Book
• Member
• BorrowRecord
• Library

This version is easier for beginners. They can start by storing books and members in lists.

Suggested Improved Classes

• Book
• BookCopy
• Member
• BorrowRecord
• BookService
• MemberService
• BorrowService

This version is more practical because it supports multiple copies of the same book.