How would you answer an interview scenario involving Factory pattern?

For an interview scenario involving Factory pattern, I would first clarify the business goal, scale, constraints, and the failure or quality attribute the interviewer wants to explore. The Factory pattern centralizes object creation so callers depend on an abstraction instead of concrete construction logic. For production, keep the factory focused on creation, return abstractions, inject dependencies, and avoid hiding unrelated business rules inside it. I would then explain the main alternatives and tradeoffs, identify likely failure modes, and describe how I would validate the solution through testing, observability, security controls, and recovery or rollback planning.