$1.$ Librarian

$-$ Attributes:

$-$ librarianId $($Primary Key$)$: Unique identifier for each librarian.

$-$ name: Full name of the librarian.

$-$ contactNumber: Contact phone number.

$-$ email: Email address for communication.

$-$ address: Residential address.

$-$ dateoffire: Date the librarian was hired.

$-$ Methods:

$-$ Manage librarians: Adding, updating, and removing librarian details.

$-$ Manage login credentials for librarians and members.

$-$ Relationship:

$-$ Librarian$-$Manages$-$Material: A librarian manages various types of materials in the library.

$2.$ Library

$-$ Attributes:

$-$ libraryID $($Primary Key$)$: Unique identifier for the library.

$-$ name: Name of the library.

$-$ location: Physical location of the library.

$-$ contactNumber: Library's contact number.

$-$ operatingHours: Hours during which the library is open. $-$ totalMaterials: Number of materials available in the library.

$-$ Relationship:

$-$ Library$-$Has$-$Materials: The library contains various materials that can be borrowed or accessed by members.

$3.$ Member $($Superclass$)$

$-$ Attributes:

$-$ memberID $($Primary Key$)$: Unique ID for each member.

$-$ name: Member's full name.

$-$ contactNumber: Phone number for contact.

$-$ email: Email address for notifications.

$-$ membershipType: Indicates if the member is a "Student" or "Staff."

$-$ books Issued: Number of books currently issued to the member.

$-$ accountstatus: Shows if the member account is active or suspended.

$-$ Methods:

$-$ Register and manage account details.

$-$ View account information and issued books.

$-$ Specializations:

$-$ Student

$-$ Attributes: enrollmentNumber, fine$$mount $($for outstanding fines$).$

$-$ Methods: Pay fine.

$-$ Staff

$-$ Attributes: staffid, department, designation.

$-$ Relationship:

$-$ Library$-$Membership: Members are registered with the library, giving them access to resources.

$4.$ Material $($Superclass$)$

$-$ Attributes:

$-$ materialID $($Primary Key$)$: Unique identifier for each material.

$-$ title: Title of the material.

$-$ publicationYear: Year of publication.

$-$ isavailable: Boolean indicating availability.

$-$ borrowedCount: Count of times the material has been issued. $-$ Methods:

$-$ Manage materials: Adding, updating, deleting materials.

$-$ Check availability.

$-$ Specializations:

$-$ Book: Attributes include author, ISBN, genre.

$-$ QuestionPaper: Attributes include subject, coursecode, semester.

$-$ CD$/$DVD: Attributes include duration, type $($e$.$g$.,$ Educational, Entertainment$),1$ icense Type.

$-$ Relationship:

$-$ Material$-$IssuedTo$-$Member: Tracks materials borrowed by members, with issue and return functions.

Guest

$-$ Attributes:

$-$ guestId $($Primary Key$)$: Unique identifier for each guest.

$-$ name: Full name.

$-$ contactNumber: Contact number.

$-$ email: Email address.

$-$ requestDate: Date when the guest requested registration.

$-$ Methods:

$-$ Request membership.

$-$ Search for materials in the library.

$-$ Relationship:

$-$ Guest$-$Requests$-$Membership: Guest users can apply to become members for greater access. Key Relationships and Operations

$-$ Relationships:

$-$ Librarian$-$Manages$-$Material: Librarians are responsible for adding, updating, and deleting materials.

$-$ Library$-$Has$-$Materials: The library contains various materials.

$-$ Library$-$Membership: Indicates that members are associated with the library and can access resources.

$-$ Material$-$IssuedTo$-$Member: Members can borrow materials, and the library tracks each material's issue and return status.

$-$ Guest$-$Requests$-$Membership: Guests can request membership to access library resources fully.

$-$ Operations:

$-$ Authentication and Registration: Members can register and authenticate to gain access. Librarians manage these processes.

$-$ Material Management: Librarians can add, delete, and update materials in the system.

$-$ Borrowing and Returning: Members can search for, issue, and return materials in the library, facilitated by librarians.

$-$ Account Management: Members can check their accounts and view issued materials, while librarians handle member$-$related inquiries.

Instructions: Using the details provided above, complete the following tasks:

$1.$ EER Diagram: Create an ER and Enhanced Entity$-$Relationship $($EER$)$ diagram that accurately represents the entities, attributes, and hierarchical relationships within the Library Management System. Ensure that the diagram includes:

$-$ Specializations $($e$.$g$.,$ Student and Staff under Member, Book and CD$/$DVD under Material$),$

$-$ Relationships and their cardinalities, $-$ Primary keys, foreign keys, and relevant attributes for each entity.

$2.$ Database Schema: Based on your EER diagram, design a database schema that captures the logical structure of the Library Management System. Your schema should detail:

$-$ Tables for each entity and specialization,

$-$ Columns representing the attributes, including data types and constraints $($e$.$g$.,$ primary keys, foreign keys, NOT NULL constraints$),$

$-$ Relationships between tables, clearly indicating primary and foreign keys.

$-$ Catalog Table

$3.$ MySQL Implementation: Write MySQL code to implement the database schema.