Benefits

• Encapsulation of Object Creation: The factory encapsulates the creation logic, making the code cleaner and easier to manage.
• Code Reusability: The same factory can be reused to create different objects, promoting code reuse.
• Flexibility and Scalability: New types of products can be added without modifying existing client code.
• Simplified Client Code: The client code is simplified as it no longer needs to instantiate objects directly.
• Decoupling: Decouples the client code from the concrete classes, adhering to the Dependency Inversion Principle.

Structure

• Product Interface/Abstract Class: Declares the operations that all concrete products must implement.
• Concrete Products: Implement the product interface.
• Factory Class: Contains the factory method that returns an instance of the product interface.

To illustrate the Factory Pattern in C# with real-world examples, let's consider two scenarios: a notification system and a logistics system.