Development of an instrument measuring user satisfaction of the human-computer interface
CHI '88 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The Nurnberg funnel: designing minimalist instruction for practical computer skill
The Nurnberg funnel: designing minimalist instruction for practical computer skill
User and task analysis for interface design
User and task analysis for interface design
SOPRANO --- An Ambient Assisted Living System for Supporting Older People at Home
ICOST '09 Proceedings of the 7th International Conference on Smart Homes and Health Telematics: Ambient Assistive Health and Wellness Management in the Heart of the City
Investigation of adaptation dimensions for age-differentiated human-computer interfaces
UAHCI'07 Proceedings of the 4th international conference on Universal access in human computer interaction: coping with diversity
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The dominance of computer technology in work and leisure poses particular challenges for older people. Specifically, their lack of computer literacy impedes their ability to explore and use new interactive systems. To investigate the effect of computer literacy and two approaches to compensate a lack thereof, 62 older (M=68 years) and 62 younger (M=25 years) participants were split evenly into three groups: the video group watched a brief instructional video immediately prior to solving eleven tasks using a simulated ticket vending machine, while the control group did not and the wizard group used a redesigned wizard interface instead of the original simulated ticket vending machine to solve the same eleven tasks. Results indicate that both age groups benefited from watching the video, while older adults benefited more, so much so, that they were as effective as the younger non-video group. For the wizard condition age differences were practically eliminated. Particularly efficacy and satisfaction of the older group increased substantially. This result suggests that the careful design and integration of minimal instructions or wizards into interactive devices could contribute to maintain independent living and societal integration for older people.