Factory Pattern Software -

: Ideal for when object construction involves complex logic or multiple steps. Real-World Example Imagine a Logistics App : Interface : Transport (with a method deliver() ). Concrete Products : Truck and Ship . Factory : Logistics class.

: The core application just calls planDelivery() . If you add AirLogistics later, the main code doesn't change. When to Avoid Factory Pattern Software

: An interface or abstract class that declares the factory method , which returns a product. : Ideal for when object construction involves complex

: A more complex version that provides an interface for creating families of related or dependent objects (e.g., a "Furniture Factory" that makes matching Chairs and Sofas). Why Use It? Factory : Logistics class

The is a creational design pattern that provides an interface for creating objects in a superclass but allows subclasses to alter the type of objects that will be created . Essentially, it encapsulates the logic of object creation, so the client code doesn't need to know the exact class it's instantiating. Core Concepts

: You can introduce new product types without breaking existing client code.