A Notification System is a tool that alerts users about important events or updates. It can be found in various applications, such as email services, social media platforms, and mobile apps. Notifications can be delivered through different channels, including pop-up messages, emails, or text messages, ensuring users stay informed about relevant information. These systems help users manage their time and tasks more effectively by providing timely reminders and updates. For instance, a notification from a calendar app can remind users of an upcoming meeting, while a social media notification can inform them of new messages or comments.