ASSIGNMENT DESCRIPTION $($SCENARIO$)$:

Design a library management system using object$-$oriented analysis and design principles. The system should allow librarians to manage book inventory, check$-$out and check$-$in books, and manage patron accounts.

The system should include the following features:

$$ A user interface that allows librarians to search for books, add new books to the inventory, and view information about patrons.

$$ A database that stores information about books, including title, author, ISBN, and availability status.

$$ A patron management system that allows librarians to create and manage patron accounts, including tracking borrowing history and fines.

$$ A check$-$out and check$-$in system that allows patrons to borrow books and return them, with automatic updating of book availability status and patron borrowing history.

$$ A reporting system that allows librarians to generate reports on book inventory, patron borrowing history, and other relevant metrics.

Your design should include the following:

$$ A use case diagram that illustrates the major use cases and actors in the system.

$$ A class diagram that shows the classes, attributes, and methods needed to implement the system.

$$ A sequence diagram that illustrates the interactions between objects in a specific scenario, such as checking out a book.

$$ A description of how your design incorporates key object$-$oriented concepts, such as encapsulation, inheritance, and polymorphism.

$$ A discussion of any potential limitations or trade$-$offs in your design, and how these could be addressed in future iterations.

ii$)$ Object$-$oriented Analysis: Preliminary investigation report