Chat Application:?

Short answer: A classic example of the Mediator Pattern is a chat application, where the mediator is responsible for sending messages between users. It ensures that messages are routed correctly without the users needing to know about each other.

Real-world example (ShopNest)

Use a GoF pattern in ShopNest only when it removes duplication or makes a change safer—explain the problem it solves in the interview.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.