Chain of Responsibility design pattern

 Purpose: Allows a request to be passed along a chain of handlers until one of them handles it. This pattern decouples the sender of a request from its receivers.

• Use Cases:
• Event Handling Systems: In graphical user interfaces (GUIs), events like clicks or keypresses are passed through a chain of event handlers.
• Middleware in Web Frameworks: HTTP requests can be processed by a series of middleware components in web applications, each handling different aspects of request processing.