Usability Quote of the Day

May 23, 2012

There's something very odd going on here. If designers made completely unrealistic assumptions about the physical world when designing technology, then we would blame them (and likely sue them) for technical incompetence. Yet when they make grossly unrealistic assumptions about human nature... we don't blame the designers, we blame the unfortunate people who are just trying to do what the design requires. -- Kim Vicente, The Human Factor, p. 45.    (via interaction-design.org)

Wednesday, October 12, 2005

The Wild, Wonderful Dvorak Keyboard

Are we stuck with the QWERTY experience? ...

"I'm a Dvorak typist. Nearly every word I've typed over the last seven years has been on a Dvorak keyboard. These very words were typed on a keyboard in Dvorak layout. That might make me a complete freak, but then again you're the one typing on the keyboard layout designed to keep typewriter keys from sticking together!

The Dvorak keyboard layout was developed by Dr. August Dvorak between 1925 and 1932. Frustrated by the pathetic inefficiency of the QWERTY layout, Dvorak did extensive research into common letter patterns and digraphs, including data about relative letter frequency and hand patterns used for typing. The result, called the Dvorak layout (or American Simplified Keyboard) was designed to be the most efficiency layout possible for English typing. (Later he used the same data to develop left-hand only and right-hand only layouts for disabled typists.)

The most common letters and letter combinations can be typed on the home row. The vowels are all on the left side of the keyboard, the most common consonants are on the right side. This takes advantage of the common consonant-vowel-consonant-vowel-consonant form of English words, allowing many of them to be typed with alternating hands. This improves speed and reduces stress on the fingers.

Dvorak typists consistently win world speed-typing competitions. A U.S. Navy study showed that Dvorak typists were 68% more accurate and 74% speedier than QWERTY typists. Overall hand and finger motion are reduced by 80%."   continued ...   (Via Jensen Harris)

Dvorak Keyboard - User Interface Design, Human Computer Interaction (HCI), Ergonomics

Dvorak Keyboard.

0 Comments:

Post a Comment

<< Home

<< Home
.