Director (PizzaDirector):?

Short answer: The PizzaDirector class orchestrates the pizza building process. It uses a builder to construct a specific type of pizza (like Margherita) by calling the appropriate methods on the builder. It then returns the final product. public class PizzaDirector

Example code

{
private readonly IPizzaBuilder _builder;
public PizzaDirector(IPizzaBuilder builder) => _builder = builder; public Pizza ConstructMargheritaPizza()
{ _builder.SetDough("Thin Crust"); _builder.SetSauce("Tomato"); _builder.AddTopping("Mozzarella"); return _builder.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.