| 2 | '''Users''' |
| 3 | * (UserID, Username, Password, Email, Role) |
| 4 | |
| 5 | '''Member''' |
| 6 | * (MemberID, Address, Phone, Membership_Status, UserID*(Users)) |
| 7 | |
| 8 | '''Book''' |
| 9 | * (BookID, ISBN, Title, Genre, PublishedYear, TotalCopies) |
| 10 | |
| 11 | '''Book_Copies''' |
| 12 | * (CopyID, BookID*(Book), Condition) |
| 13 | |
| 14 | '''Author''' |
| 15 | * (AuthorID, FirstName, LastName, Nationality, DateOfBirth) |
| 16 | |
| 17 | '''Book_Author''' |
| 18 | * (BookID*(Book), AuthorID*(Author)) |
| 19 | |
| 20 | '''Loan''' |
| 21 | * (LoanID, LoanDate, ReturnDate, Status, BookCopyID*(Book_Copies), MemberID*(Member)) |
| 22 | |
| 23 | '''Fine''' |
| 24 | * (FineID, FineAmount, FineDate, Status, LoanID*(Loan)) |
| 25 | |
| 26 | '''FinePayment''' |
| 27 | * (FinePaymentID, PaymentDate, PaymentAmount, FineID*(Fine)) |