Investigating the Accessibility of Program Selection Menus of a Digital TV Interface

We have investigated the accessibility issues of the program selection menus of a digital television interface. Initially we have simulated interaction patterns of visually and mobility impaired users and based on the simulation we have made changes to the font size and layout of the existing interface. Finally we have evaluated the new interface through a user trial involving people with disabilities. The results show that the new interface reduced the average time to select a channel and number of wrong channel selections for most of the participants.

[1]  A. Treisman,et al.  A feature-integration theory of attention , 1980, Cognitive Psychology.

[2]  Peter Robinson,et al.  Automatic evaluation of assistive interfaces , 2008, IUI '08.

[3]  Jodi Forlizzi,et al.  A study of fonts designed for screen display , 1998, CHI.

[4]  Erik Nilsen,et al.  PERCEPTUAL-MOTOR CONTROL IN HUMAN-COMPUTER INTERACTION , 1991, SGCH.

[5]  David Beymer,et al.  An eye tracking study of how font size and type influence online reading , 2008 .

[6]  Dorothy Henson-Parker.  See it Right!® , 2000 .

[7]  Klaus Miesenberger,et al.  HCI and Usability for e-Inclusion, 5th Symposium of the Workgroup Human-Computer Interaction and Usability Engineering of the Austrian Computer Society, USAB 2009, Linz, Austria, November 9-10, 2009 Proceedings , 2009, USAB.

[8]  Richard M. Young,et al.  A dual-space model of iteratively deepening exploratory learning , 1996, Int. J. Hum. Comput. Stud..

[9]  Jan Alexandersson,et al.  URC based accessible TV , 2009, EuroITV '09.

[10]  Edward Lank,et al.  Speeding pointing in tiled widgets: understanding the effects of target expansion and misprediction , 2010, IUI '10.

[11]  Peter Robinson,et al.  Modelling perception using image processing algorithms , 2009 .

[12]  David Beymer,et al.  An Eye Tracking Study of How Font Size, Font Type, and Pictures Influence Online Reading , 2007 .

[13]  Anthony J. Hornof,et al.  Cognitive modeling reveals menu search in both random and systematic , 1997, CHI.

[14]  Frank E. Ritter,et al.  Model-based evaluation of expert cell phone menu interaction , 2007, TCHI.

[15]  Matt Jones,et al.  Ubiquitous computing and cellular handset interfaces - are menus the best way forward? , 2002, South Afr. Comput. J..

[16]  Scott E. Hudson,et al.  Automatically identifying targets users interact with during real world tasks , 2010, IUI '10.

[17]  David E. Kieras,et al.  The GOMS family of user interface analysis techniques: comparison and contrast , 1996, TCHI.

[18]  Peter Robinson,et al.  Predicting Pointing Time from Hand Strength , 2009, USAB.

[19]  Michael L. Bernard,et al.  The effects of font type and size on the legibility and reading time of online text by older adults , 2001, CHI Extended Abstracts.

[20]  Ravin Balakrishnan,et al.  Fitts' law and expanding targets: Experimental studies and designs for user interfaces , 2005, TCHI.