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Issue No.05 - September/October (2003 vol.23)
pp: 54-61
Paul Blenkhorn , University of Manchester Institute of Science and Technology
Gareth Evans , University of Manchester Institute of Science and Technology
Alasdair King , University of Manchester Institute of Science and Technology
Sri Hastuti Kurniawan , University of Manchester Institute of Science and Technology
Alistair Sutcliffe , University of Manchester Institute of Science and Technology
<p>Screen magnifiers are widely used by people with visual impairments. This article presents a number of architectures for screen magnifiers. It discusses a wide range of issues related to screen magnifiers and their user interfaces. A usability study of a joystick-controlled screen magnifier is then presented. Finally, the authors suggest that performing a usability evaluation with the prospective users of screen magnifiers provides a better understanding of issues related to features and control.</p>
screen magnifiers, visual impairment, user evaluation
Paul Blenkhorn, Gareth Evans, Alasdair King, Sri Hastuti Kurniawan, Alistair Sutcliffe, "Screen Magnifiers: Evolution and Evaluation", IEEE Computer Graphics and Applications, vol.23, no. 5, pp. 54-61, September/October 2003, doi:10.1109/MCG.2003.1231178
1. D.G. Evans and P. Blenkhorn, "Architectures of Assistive Software Applications for Windows-Based Computers," to be published in J. Computer and Network Applications, vol. 26, 2003, pp. 213-228.
2. A. Baude, P. Blenkhorn, and D.G. Evans, "The Architecture of a Windows 9×Full Screen Magnifier using DDI Hooking," Proc. Assistive Technology—Added Value to the Quality of Life (AAATE 2001), IOS Press, 2001, pp. 113-118.
3. P. Blenkhorn, D.G. Evans, and A. Baude, "Full Screen Magnification Using DirectX Overlays," IEEE Trans. Neural Systems and Rehabilitation Eng., vol. 10, no. 4, 2002, pp. 225-232.
4. S. Kurniawan et al., "A Usability Evaluation of a Joystick-Operated Full-Screen Magnifier," Universal Access: Theoretical Perspectives, Practice, and Experience, LNCS 2615, Springer-Verlag, 2003, pp. 375-386.
5. R. Kosara, S. Miksch, and H. Hauser, "Focus + Context Taken Literally," IEEE Computer Graphics and Applications, vol. 22, no. 1, 2002, pp. 22-29.
6. K. Dusling and M. Uslan, "Product Evaluation: Choosing a Screen Magnifier," AccessWorld, vol. 3, no. 1, 2002, p. 12.
7. A.K. Mithal and S.A. Douglas, "Differences in Movement Microstructure of the Mouse and the Finger-Controlled Isometric Joystick," Proc. Conf. Computer-Human Interaction (CHI 96), ACM Press, 1996, pp. 300-307.
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