Transcript
Presentation for Assistive Technologies and Universal Design
WU JIAYIDepartment of Electronics and Computer Science
January 2009
Overview
1. Evaluates the usability and accessibility of two softwares.
2. Evaluates the usability and accessibility of two websites
3. Assistive Technology description and analysis.
Usability Evaluation for Google Chrome and Mozilla Firefox
Ten Usability Heuristic by Jakob Nielsen [1]
Visibility of system status Match between system and the real world User control and freedom Consistency and standards Error prevention Recognition rather than recall Flexibility and efficiency of use Aesthetic and minimalist design Help users recognize, diagnose, and recover from errors Help and documentation
Fast Dial in Google Chrome
Bookmarking in Google Chrome and Mozilla Firefox
1. In Firefox, user can bookmark a page by simply dragging the tab of the page to the bookmark bar.
2. in Chrome, the quickest way to do so is to use keyboard shortcuts to bookmark it and select a folder to hold the bookmark
Accessibility for Google Chrome and Mozilla Firefox
1. Use the software accessibility checklist [2] from U.S. Department of Justice as evaluation guideline
2. Evaluation the keyboard access, screen elements, icons, sounds, displays, etc.
Problem with Google Chrome
1. Shortcuts
2. JavaScript, Image disable
Problem with Google Chrome
High Contrast Mode (Left: Chrome, Right: Firefox)
Assistive Technologies Analysis
Left: Chrome Right: Firefox , these information are accessed by Active Accessibility Object Inspector.
Usability of Two Websites
BBC.co.uk and Timesonline.co.uk
Web Site Usability Checklist by Larisa Thomason [3]
Good Usability Features in BBC.co.uk
Web Portal
Good Usability Features in BBC.co.uk
“Explore the BBC” section in BBC.co.uk
Good Usability Features in Timesonline.co.uk
Headlines Position
Good Usability Features in Timesonline.co.uk
Popular Keywords
Popular Articles
Accessibility Evaluation of Two Websites
Web Content Accessibility Guidelines (WCAG 1.0) [4]
Browser and OS Compatibility
Assistive Technologies Analysis
BBC.co.uk itself provides a lot of assistive supports
Timesonline.co.uk does not provides any assistive supports, relies on external tools.
Thank You!
References 1. Nielsen, J. Ten Usability Heuristics. 2005 [cited 2009 Jan 1st];
Available from: http://www.useit.com/papers/heuristic/heuristic_list.html. 2. Software Accessibility Checklist. [cited 2009 Jan 2nd]; Available
from: http://www.usdoj.gov/crt/508/archive/oldsoftware.html. 3. Thomason, L. [cited 2009 Dec 3rd]; Available from:
http://www.netmechanic.com/news/vol7/design_no4.htm. Web Content Accessibility Guidelines 1.0. [cited 2009 Jan 1st];
Available from: http://www.w3.org/TR/WCAG10/
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