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Development and Evaluation of Video Instructions for a Cross-generational AAL Tablet Application

Development and Evaluation of Video Instructions for a Cross-generational AAL Tablet Application SummaryIt is challenging to design a sufficiently complex user interface that is universally usable. Striking differences between younger and older users, based on age and cohort effects, demand suitable design compromises with an effective combination of user interface and instructional design. This paper describes such a design compromise with a focus on video instruction for an AAL application designed to maintain and expand cross-generational social support networks. To estimate its effectiveness, 30 younger (M = 26 years) and 31 older (M = 68 years) participants were split in two groups: Both solved the same 16 tasks with the same AAL application, yet the experimental group received a short video instruction before the tasks and the control group did not. Results show that both age groups rated the video instruction as useful and did benefit from it – older users’ effectiveness improved even to the level of younger users. It can be concluded that the effective combination of user interface and instructional design played a central role towards universal usability and that early integration of instructional design into the human centered design process improved its efficiency. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png i-com de Gruyter

Development and Evaluation of Video Instructions for a Cross-generational AAL Tablet Application

Benz, Roman; Brucks, Martin; Sengpiel, Michael
i-com , Volume 15 (1): 14 – Apr 1, 2016
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References (18)

Publisher
de Gruyter
Copyright
© 2016 Walter de Gruyter GmbH, Berlin/Boston
ISSN
2196-6826
eISSN
2196-6826
DOI
10.1515/icom-2016-0004
Publisher site
See Article on Publisher Site

Abstract

SummaryIt is challenging to design a sufficiently complex user interface that is universally usable. Striking differences between younger and older users, based on age and cohort effects, demand suitable design compromises with an effective combination of user interface and instructional design. This paper describes such a design compromise with a focus on video instruction for an AAL application designed to maintain and expand cross-generational social support networks. To estimate its effectiveness, 30 younger (M = 26 years) and 31 older (M = 68 years) participants were split in two groups: Both solved the same 16 tasks with the same AAL application, yet the experimental group received a short video instruction before the tasks and the control group did not. Results show that both age groups rated the video instruction as useful and did benefit from it – older users’ effectiveness improved even to the level of younger users. It can be concluded that the effective combination of user interface and instructional design played a central role towards universal usability and that early integration of instructional design into the human centered design process improved its efficiency.

Journal

i-com – de Gruyter

Published: Apr 1, 2016

Keywords: Universal Usability; Video Instruction; Cross-generational Design; Ambient Assisted Living; Design for Aging; Human Centered Design

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