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user interface Last modified: Wednesday, August 13, 2003

Abbreviated UI, the junction between a user and a computer program. An interface is a set of commands or menus through which a user communicates with a program. A command-driven interface is one in which you enter commands. A menu-driven interface is one in which you select command choices from various menus displayed on the screen. The user interface is one of the most important parts of any program because it determines how easily you can make the program do what you want. A powerful program with a poorly designed user interface has little value. Graphical user interfaces (GUIs) that use windows, icons, and pop-up menus have become standard on personal computers.

Yahoo!'s user interface page Yahoo!'s directory of user interface. Maintaining a Responsive UI A frozen user interface is hard to distinguish from a hung application. Learn how to address this problem in your .NET Windows Forms applications.