The ICommandHandler is an interface commonly used in software development, particularly in the context of the Command Pattern. It defines a contract for handling commands, which are requests for an action to be performed. By implementing this interface, developers can create specific handlers that process different types of commands, promoting a clean separation of concerns in the codebase. In many applications, the ICommandHandler allows for better organization and scalability. Each command can be encapsulated in its own class, and the handler can execute the command's logic. This approach enhances maintainability and makes it easier to add new features without disrupting existing functionality.