Builder Interface (IPizzaBuilder):?

Short answer: The IPizzaBuilder interface defines the steps for constructing a pizza. It includes methods for setting the dough, sauce, and adding toppings, as well as a Build() method to return the fully constructed pizza. public interface IPizzaBuilder

Example code

{ void SetDough(string dough); void SetSauce(string sauce); void AddTopping(string topping); Pizza Build(); }

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.