Task performance in mobile and ambient interfaces. Does size matter for usability of electronic diabetes assistants?

Valdez, André Calero; Ziefle, Martina; Horstmann, Andreas; Herding, Daniel; Schroeder, Ulrik

doi:10.1109/i-society16502.2010.6018768

Cited by 6 publications

(1 citation statement)

References 29 publications

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“…The two screen sizes made no difference in terms of use performance and perceptions of the system. Although this interesting finding is inconsistent with those of previous studies (Chae & Kim, 2004;Findlater & McGrenere, 2008;Valdez et al, 2010), it might have resulted from the use of the touchscreen system, which is able to facilitate older adults' use of technology systems (Murata & Iwase, 2005;Ng et al, 2013), and from the system's robust usability with various screen sizes, as the system was developed in consideration of human factors (Or & Tao, 2012). The 7-inch tablet system was found to be large enough and exhibited a high level of usability for the older adults.…”

Section: Discussioncontrasting

confidence: 99%

The Influence of Computer Experience and Screen Size on Use Performance and Perceptions of a Tablet-Based Chronic Illness Self-Management System for Older Adults

Tao

2014

Proceedings of the International Symposium on Human Factors and

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A usability study of a tablet-based chronic illness self-management system was conducted to evaluate the system's usability and to examine the effects of screen size and computer experience on use performance and perceptions of the system. A two-factor, between-subjects design was implemented, in which 40 older adults aged from 55 to 88 years were equally assigned to two screen size groups and required to perform a set of self-management tasks. The results showed that screen size had no effect on either the use performance or perceptions of the system, and that computer experience had significant effects on the former but no effect on the latter. Older adults without computer experience tended to perceive the large tablet screen system as more useful. This study verified the usability of the tablet-based self-management system with older adults. Its findings suggest the need to determine an optimal screen size for consumer health information technologies, and highlight the importance of computer experience in usability studies. Future studies may address its limitations.

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Section: Discussioncontrasting

confidence: 99%

The Influence of Computer Experience and Screen Size on Use Performance and Perceptions of a Tablet-Based Chronic Illness Self-Management System for Older Adults

Tao

2014

Proceedings of the International Symposium on Human Factors and

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Studying the Acceptance of a Digital Diabetes Diaries

Valdez

Ziefle

2019

Communications in Computer and Information Science

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Mobile Computing is not Always Advantageous: Lessons Learned from a Real-World Case Study in a Hospital

Holzinger

Sommerauer

Spitzer

et al. 2014

Advanced Information Systems Engineering

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Abstract. The use of mobile computing is expanding dramatically in recent years and trends indicate that "the future is mobile". Nowadays, mobile computing plays an increasingly important role in the biomedical domain, and particularly in hospitals. The benefits of using mobile devices in hospitals are no longer disputed and many applications for medical care are already available. Many studies have proven that mobile technologies can bring various benefits for enhancing information management in the hospital. But is mobility a solution for every problem? In this paper, we will demonstrate that mobility is not always an advantage. On the basis of a field study at the pediatric surgery of a large University Hospital, we have learned within a two-year long mobile computing project, that mobile devices have indeed many disadvantages, particularly in stressful and hectic situations and we conclude that mobile computing is not always advantageous.

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Task performance in mobile and ambient interfaces. Does size matter for usability of electronic diabetes assistants?

Cited by 6 publications

References 29 publications

The Influence of Computer Experience and Screen Size on Use Performance and Perceptions of a Tablet-Based Chronic Illness Self-Management System for Older Adults

The Influence of Computer Experience and Screen Size on Use Performance and Perceptions of a Tablet-Based Chronic Illness Self-Management System for Older Adults

Studying the Acceptance of a Digital Diabetes Diaries

Mobile Computing is not Always Advantageous: Lessons Learned from a Real-World Case Study in a Hospital

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