user interface
The way a person interacts with a computer or electronic device. It comprises the screen menus and icons, keyboard shortcuts, command language and online help, as well as physical buttons, dials and levers. All input devices, such as a mouse, keyboard, touch screen, remote control, joy stick, game controller or data glove, are also included. In the future, natural language recognition and voice recognition will become standard components of the user interface.
The Bar Is Set Low
The user interface is the most important, yet least-understood area in the computer industry. Every application has only a handful of basic functions that users need all the time, yet they are often buried in arcane submenus that must be memorized. Worse yet, once bad examples are set by major vendors, others follow like sheep. Since popular applications are often hard to learn, users have come to expect that using software has to be difficult, when in fact, it could be downright simple if educated designers were involved.
Users Are Reluctant to Change
Because of the steep learning curves people have endured in the past, many are loathe to change applications. While the software industry constantly touts "productivity gains" for every new product, the lost hours figuring out how to do something, combined with the gun-shy reluctance to actually try a different product that might really be an improvement hardly enhance productivity. If we are to make computers more usable for the masses, the user interface and online documentation must be given much greater attention. See RTFM, naming fiascos, Freedman's law, Web rage and HCI.
 |
| Give Us a Break! |
|---|
| These delightful names were chosen for the folders on a digital camera's memory card. Wouldn't names such as Still, Moving, Audio, and Email be slightly more to the point. Hello-o-o-o-o-o-o! This insanity is perpetrated by countless vendors. |
 |
| Give Us Another Break! |
|---|
| We may have high-tech flat panel TVs in the 21st century, but we still have to contend with dopey button naming. The salvation for family members using this TV remote was to attach labels that made sense out of P.Size, S.Mode and P.Mode. |
 |
| Wretched Design |
|---|
| Quite common on inexpensive remotes, the Power On/Off button is next to function buttons, such as the Stop button on this DVD control. Also common are all the buttons jammed together in a uniform, columnar matrix so that it is impossible to quickly press a button by feel in a dark room. |
 |
| Great Design |
|---|
| Much of the iPod's enormous success is attributed to its simple user interface, which is controlled entirely by the click wheel. Originally rotating, and later changed to stationary and touch sensitive, the wheel is clicked and also scrolled by moving a finger around it. |
It Can Change World History
Nothing could better highlight the importance of a user interface than the U.S. presidential election of 2000. The confusing punch card ballot used in Palm Beach County, Florida caused thousands of voters to vote for Buchanan rather than Gore or Bush, and the presidency hinged on the results. Is a ballot a user interface? You bet, because any designed interaction between man and machine is a user interface, and this one people will remember in the history books!
user interface [
′yü·zər ′in·tər‚fās]
(computer science)
The point at which a user or a user department or organization interacts with a computer system.
The part of an interactive computer program that sends messages to and receives instructions from a terminal user.
user interface - (UI) The aspects of a computer system or program which can be
seen (or heard or otherwise perceived) by the human user, and
the commands and mechanisms the user uses to control its
operation and input data.
A graphical user interface emphasises the use of pictures
for output and a pointing device such as a mouse for input
and control whereas a command line interface requires the
user to type textual commands and input at a keyboard and
produces a single stream of text as output.
A user interface contrasts with, but is typically built on top
of, an Application Program Interface (API).
See also user interface copyright. | |
