David Pogue, "Interface Design Is Trickier Than It Seems," The New York Times, 6 Dec 2001

The interface -- the layout of the controls -- determines how easily and effectively you can use the product: which buttons go where, how many layers down you have to burrow to find an important function, and so on.

Here's good interface design: A Palm organizer's Address Book screen has a New button—but the Delete command is hidden in a menu, because you add names much more frequently than you delete them. Here's bad design: Cell phones that make you dive into menus just to turn off the ringer.