The UML class diagram presented for a chat app indicates the different primary relationships existing between the entities of the chat app, user, chat group, message, notification, and chat. Each class has its share of properties such as app ID, user ID, and message ID and functions which include initialize app (), send message (), and view notifications ().
The diagram depicts how users can join several chat or group conversations, whereby Messages and Notifications are attached both to users and chat groups. This UML class diagram provides a blueprint for developers to develop an organized chat app.
