The graphs on the left illustrate typical new
user typing speeds and improvement rates on four keypad layouts:
Delta II keypad.
Alphabetically ordered, 26+
button keypad. (e.g. Fastap *)
T9 * enhanced cell phone keypad.
Standard 12-button cell phone keypad using multi-tap.
Users were timed while they typed "the quick
brown fox jumps over the lazy dog", six times into four keypad simulators.
These times were converted to words-per-minute (WPM) and
graphed by trials #1 - #6.
The test subjects were average typists with essentially no
text-entry experience on any of the four keypad types except for S. Bogdan, who
had previous experience with multi-tap.
The results presented here are typical and consistent with
those of other users tested.
* some names above are
trademarks of their respective companies.