Toward achieving universal usability for older adults through multimodal feedback

Abstract

This experiment examines the effect of combinations of feedback (auditory, haptic, and/or visual) on the performance of older adults completing a drag-and-drop computer task. Participants completed a series of drag-and-drop tasks under each of seven feedback conditions (3 unimodal, 3 bimodal, 1 trimodal). Performance was assessed using measures of efficiency and accuracy. For analyses of results, participants were grouped based on their level of computer experience. All users performed well under auditory-haptic bimodal feedback and experienced users responded well to all multimodal feedback. Based on performance benefits for older adults seen in this experiment, future research should extend investigations to effectively integrate multimodal feedback into GUI interfaces in order to improve usability for this growing and diverse user group.

PERSPECTIVE: Older Adults' Adoption of Technology: An Integrated Approach to Identifying Determinants and Barriers

“…Lastly, interactions should not require physical dexterity or heavy cognitive processing (Kurniawan and Zaphiris, 2005). To minimize the need for extensive learning and memory, appropriate modes of control, feedback, and instructions must be provided (Emery et al, 2003;Mynatt and Rogers, 2001). For example, use of touch screens may reduce workload by providing a clear match between display and control Wood, Willoughby, Rushing, Bechtel, and Gilbert, 2005).…”

A Usability Study on Elder Adults Utilizing Social Networking Sites

“…Numerous studies recognize that there is a need to design websites that are accessible and usable for elder adults (Wagner et al, 2010;Riman, Ghusn, & Monacelli, 2011;Emery et al, 2003;Lin, Neafsey, & Strickler, 2009). Research shows that websites often do not accommodate elder users as they experience only half of what younger users encounter (Coyne and Nielsen, 2002).…”

“…In addition, familiar words were used along with jargon and technical terminology. Also, buttons were used when possible as studies show that elder adults prefer buttons over text and image links (Wagner et al, 2010;Riman, Ghusn, & Monacelli, 2011;Emery et al, 2003;Lin, Neafsey, & Strickler, 2009). To take away any confusion on the button's destination, specific keywords on the navigation buttons were added, such as "Read Next Post" or "Read Previous Post" (Figure 19).…”

A Mobile Interface for the Older User

“…Feedback is essential and reduces ambiguity about system state. Moreover, multiple types of feedback, when combined, can enhance the usability of a mobile touch-interface [34] [35]. Hence, the interaction is enhanced by visual (highlighting visual buttons when touched) and tactile feedback (vibration) to confirm performed actions.…”