Centralized Operation Logic:?

Short answer: Operations are centralized in the visitor, which makes it easier to manage complex operations. If multiple operations are performed on the same structure, they can be handled by different visitors.

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.