We need a Library Management System that is intended to manage the daily operations of a library, helping librarians manage books, patrons, and transactions efficiently. The system should handle tasks such as book checkouts, returns, reservations, and fines management. Requirements:$1)$ Activity Flow Diagram: Purpose: To visualize the overall flow of activities in the library system. Tasks: Show how a book is checked out and returned. Include activities for managing fines and reservations$\mathrm{.}2)$ Data Flow Diagram $($DFD$)$: Purpose: To represent how data moves within the system. Tasks: Create a Level $0($context diagram$)$ and a Level $1$ DFD$.$ Show data flows between librarians, patrons, and the database foroperations like search, update, and retrieval of book information$\mathrm{.}3)$ Use Case Diagram: Purpose: To identify the interactions between users and the system. Tasks: Identify at least three actors $($e$.$g$.,$ librarian, patron, admin$).$ Develop use cases for common interactions such as borrowing a book,returning a book, and registering a patron$\mathrm{.}4)$ Sequence Diagram: Purpose: To detail the sequence of operations between objects to carry out aspecific function. Tasks: Create diagrams for at least two processes, such as issuing a book andhandling a reservation. Show messages passed between objects in the system during thesetransactions.Submission Format:$1)$ Accompany each diagram with a brief explanation of the process represented$\mathrm{.}2)$ Submissions must be in PDF format$\mathrm{.}3)$ DO NOT text me on WhatsApp asking if your work is correct or not beforesubmitting.