The ICommandPattern is a design pattern used in software development to encapsulate a request as an object. This allows for parameterization of clients with queues, requests, and operations. It promotes the separation of concerns, making it easier to manage and extend code, especially in applications with complex user interfaces. In the ICommandPattern, commands are created as classes that implement a common interface, typically called ICommand. This interface usually includes methods like Execute and Undo, enabling the execution and reversal of actions. This pattern is commonly used in applications that require undo functionality or command history management.