User tests demonstration

Real experiences in measuringweb accessibility needs for people

with disabilities and the elderly

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge

Ramón CorominasTechnosite – ONCE Foundationwww.technosite.es

21st April 2009

Contents

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• Web accessibility assessment

• Expert analysis vs. User tests

• Diversity of users

• Some findings

Accessibility evaluation methodology

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• Phase 1: assessment

• Phase 2: recommendations

• Phase 3: monitoring

Web accessibility assessment

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• UWEM/MEWA

• Sample of pages

• Automatic testing

• Expert analysis

• User tests

Sample of pages

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• Basic structure of the site

• Technical elements and special formats

• Content by topic

• Random pages

Audit report

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• WCAG 1.0 and 2.0• Expert analysis: automated, manual, AT• Issues detected

– ID, severity, frequency– Detailed description– Example of wrong code/screen captures– Technical solutions and suggestions

User tests

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• Real world tasks and users

• No previous experience

• Measures: success, time, satisfaction

• General impressions and difficulties found

Diversity of users

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• Blind• Low vision• Deaf• Limited movement of the hand• Cognitive disability• Elderly• No-disability

Blindness

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• Flash content (even “accessible”)

• Too much information

• Long processes

• Accesskeys don’t always help

Low vision

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• Follow conventions (menus, links)

• Contrast of forms and visited links

• Bright background and thin fonts

• Very small fonts and icons

• Bigger is not always better

Limited movement of the hand

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• Small links and buttons

• Time limits

• Wrong alt text for images with links

• Repeated links

Deafness, cognitive, elderly

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• Language used (easy to read material)

• Information Architecture

• Accompanying icons, pictograms, videos

• Distracting content

• Redundant information

• Elderly: variety of disabilities

Conclusions

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009

• Web accessibility assessment:– Expert analysis

– User tests

• Different users => different needs

• More precise recommendations

• Better websites

Thank you!

___________________________________________________User tests

demonstration

___________________________________________________________________

WWW2009 - W4A Challenge21st April

2009