Turn down the TV
are sitting in front of the TV, and want
to turn down the sound. You grab the remote control,
scan for the button with the down-arrow
and push it. The TV gets louder! You
pushed the up-arrow button instead of the
down-arrow button. Why?
letter "V" for volume is on the two volume
control buttons. Although the buttons are
shaped like up- and down-arrows for increasing
and decreasing the volume, the letter "V" looks
like a down-arrow. When you are scanning the remote
control for a down-arrow, you see the "V" as a
and press it. Unfortunately, the first "V" you
see is on the up-arrow!
of the large "V" as a
label on the volume control buttons,
"Vol" in smaller letters could be
In general, a control's features such as placement,
shape, labeling, size, etc. need to work together
to convey how to use the control. In this example,
the shape and label convey conflicting information.
Michael J. Darnell 1996-2010. All rights reserved.