Fundamentals of Wearable Computers and Augmented Reality, 2nd Edition

603Design Challenges of Real Wearable Computers

While among input options, touch and button interfaces dominate, a trend to mul-

timodal output controls is observable for information feedback. Toney etal. (2002)

investigated output options regarding cognitive load and external perception too

and implemented LEDs in suit cuffs to inform on priority of available information.

Furthermore, they considered a tactile feedback (pager motor) sewn into the jacket

shoulder providing different vibration patterns, and a watch computer with a pro-

grammable LCD for short messages. Toney etal. (2002) considered that sound out-

put required context information to enable it only when appropriate. In the scenario

of Curone etal. (2010), garments included a ...