Evaluation of Visual Notification Cues for Ubiquitous Computing
Peter Tarasewich, Christopher S. Campbell, Tian Xia and Myra Dideles
Abstract
With increased use of mobile information technology and increased
amounts of information comes the need to simplify information
presentation. This research considers whether low-information-rate
displays (such as those used in mobile devices) can provide effective
information awareness. An experiment was performed to measure the
performance/size tradeoff of visual displays ranging in size from two
LEDs to nine LEDs, and using a number of display characteristics show
a reliable tradeoff between performance (participant response time and
accuracy) and display size (number of LEDs). However, even the full
set of 27 messages can be conveyed with high recognition accuracy
using only three LEDs by mapping the messages into color and
position. Thus, mobile devices with micro-level form factors can be
designed to convey critical information and provide effective
notifications. Future work and a prototype developed from this work
are discussed.