OOD

Part 1: OOD Exercises

1. Design a Library Management System

	•	Design a system to manage a library’s operations.
	•	Include classes like Book, Member, Librarian, and Loan.
	•	Define relationships:
	    •	A Member can borrow multiple Books.
	    •	A Book can be borrowed by multiple Members but only one at a time.
	•	Add features like:
	    •	Checking out and returning books.
	    •	Searching for books by title, author, or genre.

2. Design a Ride-Sharing System

	•	Create a system for a ride-sharing app like Uber or Lyft.
	•	Classes to include:
	    •	Driver, Rider, Ride, and Car.
	•	Define relationships:
	    •	A Driver has a Car.
	    •	A Rider can request a Ride.
	    •	A Ride connects a Rider to a Driver.
	•	Add behaviors:
	    •	Finding the nearest driver.
	    •  	Calculating the fare for a trip.

3. Design an Online Shopping System

	•	Develop a basic shopping cart system.
	•	Classes to include:
	    •	User, Product, Cart, and Order.
	•	Define relationships:
	    •	A User has a Cart with multiple Products.
	    •	An Order is created when the Cart is checked out.
	•	Add features like:
	    •	Adding/removing items from the cart.
	    •	Calculating the total price.

4. Build a Social Media Platform

	•	Design the structure for a social media platform.
	•	Include classes like User, Post, Comment, and Like.
	•	Define behaviors such as:
	    •	Adding a post.
	    •	Commenting on posts.
	    •	Liking a post.

5. Design a Movie Ticket Booking System

	•	Classes to include:
	    •	User, Movie, Theater, Seat, and Booking.
	•	Define relationships:
	    •	A Theater has multiple Movies and Seats.
	    •	A User can make a Booking for specific Seats in a Theater.
	•	Add features like:
	    •	Selecting seats.
	    •	Checking seat availability.
	    •	Making payments.


    •	Python: Use SQLAlchemy, Django ORM.
	•	Java: Use Hibernate or JPA.
	•	C#: Use Entity Framework.
	•	Ruby: Use Active Record.
	•	PHP: Use Eloquent (Laravel).