The effects of redundancy in user-interface design on older users (original) (raw)
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Redundancy in interface design and its impact on intuitive use of a product in older users
Many older adults have difficulty using modern consumer products due to their complexity both in terms of functionality and interface design. It has been observed that older people also have more problems learning new systems. It was hypothesised that designing technological products that are more intuitive for older people to use can solve this problem. An intuitive interface allows a user's to employ prior knowledge, thus minimizing the learning needed for effective interaction. This paper discusses an experiment investigating the effectiveness of redundancy in interface design. The primary objective of this experiment was to find out if using more than one modality for a product's interface improves the speed and intuitiveness of interactions for older adults. Preliminary analysis showed strong correlation between technology familiarity and time on tasks, but redundancy in interface design improved speed and accuracy of use only for participants with moderate to high technology familiarity.
Designing User Interfaces for an Aging Population: Towards Universal Design
2017
To encourage you to think in terms of tendencies and generalities rather than absolutes, we have italicized words such as tend (to), some, many, and often throughout this chapter. Throughout this book, we emphasize that the number and degree of individual differences increases with age. We all know people whose technical expertise, health, cognition, adaptability, and other relative attributes are exceptionally low or exceptionally high. For every tendency we discuss, there are always exceptions.
Designing User Interfaces for an Aging Population
2017
To encourage you to think in terms of tendencies and generalities rather than absolutes, we have italicized words such as tend (to), some, many, and often throughout this chapter. Throughout this book, we emphasize that the number and degree of individual differences increases with age. We all know people whose technical expertise, health, cognition, adaptability, and other relative attributes are exceptionally low or exceptionally high. For every tendency we discuss, there are always exceptions.
User Specific Design of Interfaces and Interaction Techniques: What Do Older Computer Users Need?
Lecture Notes in Computer Science
The increase of a “graying” society is apparent in recent decades and as such, the attention of marketing and product design is more and more focused on older users of technical devices. The study addresses the relevance of hardware and software design in human-computer interaction of older users. It was found that performance significantly increased (up to 3 times) with easier sensumotor transformation and easier task type. However, this was more prominent in middle-aged users than in younger users. Task difficulty revealed a rather unspecific impact on performance (43%), and was equally apparent in both age groups. Recommendations derived from this review show that older users will profit most from touch based or mouse operated interfaces. Additionally, easy icon and menu designs are often missed and will become more and more important for older users.
Intuitive use of complex Interface structure, stress and older users
INTERACT 2013
This paper presents the outcome of a study that investigated the relationships between technology prior experience, self-efficacy, technology anxiety, complexity of interface (nested versus flat) and intuitive use in older people. The findings show that, as expected, older people took less time to complete the task on the interface that used a flat structure when compared to the interface that used a complex nested structure. All age groups also used the flat interface more intuitively. However, contrary to what was hypothesised, older age groups did better under anxious conditions. Interestingly, older participants did not make significantly more errors compared with younger age groups on either interface structures.
Age-specific usability issues of software interfaces
The aim of the present study was to identify shortcomings of electronic interface designs for older users. Beyond general ergonomic factors, the study focused primarily on visual and language aspects of interface design. By means of a multi-method approach, combining cognitive walkthrough procedures with a usability test, age-specific problems and requirements of older computer users were examined. In the cognitive walkthrough shortcomings of a sample application were analyzed. In the usability test the navigation performance of older users (aged 55+) was contrasted to a young adult group, to identify usability problems, which are age-exclusive (interaction difficulties only for older users) and age-specific (general problems that are more pronounced in the older group).
Ageing, Technology Anxiety and Intuitive Use of Complex Interfaces
Lecture Notes in Computer Science, 2013
This paper presents the outcome of a study that investigated the relationships between technology prior experience, self-efficacy, technology anxiety, complexity of interface (nested versus flat) and intuitive use in older people. The findings show that, as expected, older people took less time to complete the task on the interface that used a flat structure when compared to the interface that used a complex nested structure. All age groups also used the flat interface more intuitively. However, contrary to what was hypothesised, older age groups did better under anxious conditions. Interestingly, older participants did not make significantly more errors compared with younger age groups on either interface structures.
2013
This study started with the aim to develop an approach that will help designers create interfaces that are more intuitive for older adults to use. Two objectives were set for this study: 1) to identify and investigate one of the possible strategies for developing intuitive interfaces for older people; and 2) to identify and investigate factors that could interfere with intuitive use. This paper briefly presents the outcome of the two experiments and how it has lead to the development of an adaptable interface design model that will help designers develop interfaces that are intuitive to learn and, over time, intuitive to use for users with diverse technology prior experience and cognitive abilities.
Enhancing usability for elderly people Bachelor thesis Information Sciences
2007
Using a computer is commonly experienced as a problem amongst elderly people. This thesis aims to find a way to enhance computer usability for elderly users. Firstly, an elaborate description of the user group and the problem is given. The user group and problem have been researched by studying literature, observing the user group at work and interviewing a usability expert. Based on these results, experimentation platforms have been designed implementing suggested improvements for the found problems. These features have been tested and evaluated by conducting experiments and interviews with potential users. Finally, the found solutions to enhancing usability for the elderly are summarized.