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Nov 5, 2013 (3 years and 9 months ago)

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INFO 6002

Assistive Technologies and Universal
Design


Accessibility and Usability Evaluatio
n

Chaohai Ding


Msc of Web Technology

cd8e10@ecs.soton.ac.uk

Data.gov.uk

1.A Public Platform for British citizens.

2.Evaluation based on Web 2.0 services Test Criteria in
Web2Access (75.5%):

2.1. Readable test alternatives, but no text alternatives for some
images

2.2 Video has the subtitle, but no chance to add content
alternatives for videos.

2.3 Rich
-
text editor is not accessible by keyboard tabbing.

2.4 Some area is difficult for reading due to the colour contrast

3. 55 of 60 browsers in three different operating systems are
compatible for this site.


Wikipedia

1.A free website which includes many encyclopaedia articles
based on openly editable model.

2.Evaluation based on Web 2.0 services Test Criteria in
Web2Access (64.4%):

2.1
No text alternatives for Captchas and images.

2.2 Fully navigable with WebbIE.

2.3 Rich
-
text editor is not accessible by keyboard tabbing.

2.5 lots of areas are not suitable for reading due to color
contrast


3.53 of 59 browsers are compatible for this site.

Windows Live Messenger 2011

1.
An instant messaging software.


2.
Evaluation based on Applications Test Criteria in Web2Access
(86.7%):

2.1 Good support for built in assistive tools in Windows 7.

2.2 Good support for external screen reader.

2.3 Keyboard access available, but no instruction of shortcut keys.

2.4 No font size and colour setting.

2.5 Good support for starting up.


3. Just supported in Windows 7 or Vista and other portable
platforms.



Yahoo! Messenger 10

1.
An instant messaging software.

2.
Evaluation based on Applications Test Criteria in Web2Access
(88.9%):

2.1 Not all elements are supported for built in assistive tools in
Windows 7.

2.2 Good support for shortcut keys navigating.

2.3 No clear description about the element when tabbing.

2.4 font size and
colour

setting by users.

2.5 Zooming supported by external assistive tools


3. Just supported in Windows 7 ,Vista or XP and other portable
platforms.



Website Design

1. Accessible at ECS Personal Homepage.

http://users.ecs.soton.ac.uk/cd8e10/website/index.html

2.Using the CSS template from “Free CSS Template”.

http://www.spyka.net/



3.Refine the template and reconstruct


it to fit the requirement of accessibility

and usability.

4.Adding the shortcut keys for

accessibility which is not conflict

with the default browsers such IE

or Firefox.

1.Accessibility and Usability

1.1 Evaluated by WAVE, Color Contrast Analyser
and

Functional Accessibility Evaluator.

1.2 Reconstruct depends on the results.


3.Compatibility

Following the web standard and test it

automatically.


4.Web Standard


http://users.ecs.soton.ac.uk/cd8e10/website/index.
html





Thank you