 |
Vol. 1, No. 1 | Dec 2008 |
 |
|
 |
|
Research: Touchscreen Smartphones Get Smarter Eve Hoggan, Stephen A. Brewster, and Jody Johnston: Investigating the Effectiveness of Tactile Feedback for Mobile Touchscreens For annotated publication of your haptics research in this newsletter and its dissemination to commercial designers, please write to Haptic Times at research@immersion.com This smartphone study compared use of a mechanical keyboard (Palm Treo 750) to use of touchscreens both with and without haptic feedback (Samsung i718). Twelve subjects entered short, memorized text messages in the three devices, both in a laboratory and while riding on a subway train.
The virtual keypad was designed to be of similar size as the mechanical keypad. In the haptic-enabled touchscreen, feedback was used to
Metrics were collected for accuracy (correctly entered letters) and the time to enter the phrase. NASA TLX task loading questionnaires were also completed. The final results showed that the device with the mechanical keyboard had the highest performance, while the non-haptic touchscreen had the lowest performance. With haptic feedback, user performance improved both in accuracy and time to enter the phrase. In the subway environment, users were approximately 22% more accurate and 19% faster with the haptic-enabled touchscreens.
Mental demand, physical demand, frustration, and annoyance
levels were significantly reduced on the Samsung i178 when the haptic
feedback was enabled. (NASA TLX task loading evaluation)
|
|
|
|||||||||||||||||||||||||||||||||||||
|
|
|
|
|
Copyright © 2008 Immersion Corporation. All
rights reserved.
Immersion, the Immersion logo, TouchSense, and VibeTonz
are trademarks of Immersion Corporation in
the
U.S.
and other countries.
All
other trademarks are the property of their respective owners.