1. Sharon Trerise & Kara Patten Graphics from webaim.org
Procurement of Accessible ICT (Information and Communication Technology) Screen Readers
Sharon Trerise & Kara Patten
Graphics from webaim.org

2. Screen Readers Windows Mac OS
JAWS ($1,000/ license) – 10 concurrent licenses campus-wide
Browsers: Chrome, IE
NVDA (free download)
Browser: Firefox
Mac OS
VoiceOver (free with OS)
Browser: Safari

3. Most common combinations JAWS with IE NVDA with Firefox
WebAIM Screen Reader User Survey 2015 Screen Reader / Browser Combinations
Most common combinations
JAWS with IE
NVDA with Firefox
VoiceOver with Safari
Screen Reader, % of Respondents
JAWS 30.2%
ZoomText 22.2%
Window-Eyes 20.7%
NVDA 14.6%
VoiceOver 7.6%
System Access or System Access To Go 1.5%
ChromeVox 0.3%
Other 2.9%
Source: WebAIM Screen Reader User Survey 2015

4. WebAIM Screen Reader User Survey 2015 Mobile Screen Reader Usage
iOS = 70%
Android = 21%
Other = 9%
Screen Reader, % of Respondents
JAWS 30.2%
ZoomText 22.2%
Window-Eyes 20.7%
NVDA 14.6%
VoiceOver 7.6%
System Access or System Access To Go 1.5%
ChromeVox 0.3%
Other 2.9%
Source: WebAIM Screen Reader User Survey 2015

5. Screen Reader User Surveys Common approach to navigation
Headings (properly ordered, descriptive, unique)
Regions (nav, main, etc)
Find (Ctrl + F)

6. JAWS Keystrokes Action Keys Stop talking! Ctrl
Move between active areas of page (links & form elements)
[Tab] & [Shift] [Tab]
Read next / previous item
Down Arrow / Up Arrow
Read continuously from current location
Insert + Down Arrow
Activate link
Enter
Activate button
Enter or Space bar
List headings
Insert + F6
List links
Insert + F7
List form elements
Insert + F5
Go to next landmark / region R

7. VoiceOver (VO) keystrokes for OSX
Action
Keys
Turn VO on / off
Command + F5
Stop talking
Control
Go to next / previous focusable item
[Tab] / [Shift + Tab]
Activate link
Enter
Activate button
Enter or Spacebar
Referred to as VO
VO keys (Control + Option)
Show Rotor (use arrow keys to navigate)
VO + U
Read next / previous item
VO + right / left arrow
Interact with (go into / out of) objects
VO + Shift + down / up arrow
Start reading
VO + A

8. Screen reader Checklist
Criteria
Test using:
Graphics have meaningful descriptions (alt text)
WAVE
Headings are used and nested appropriately
Page has logical read order
Screen reader – TAB through page
Link text is descriptive
Screen reader
There is a Skip Navigation or Skip to Content link
All content can be accessed using the keyboard alone
Data tables have simple structure (no merged columns or rows)
All form elements can be completed
WAVE for labels
Screen reader for keyboard access
Error messages clearly indicate what needs to be corrected
One way to judge factors is with WAVE evaluation tool

9. Resources deque’s Screen Reader Survival Guide WebAIM.org
Survey of screen reader users in 2015
JAWS keyboard shortcuts
Using JAWS to Evaluate Web Accessibility
Using VoiceOver to Evaluate Web Accessibility