Accessibility testing tools
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Accessibility Testing Tools. Testing goals. Compliance with accessibility standards? Conformity to coding standards or best practices? Functional Accessibility? Compatibility within a given environment?. Types of testing tools. Site-wide compliance scanning and validation tools

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Accessibility Testing Tools

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Accessibility testing tools

Accessibility Testing Tools


Testing goals

Testing goals

  • Compliance with accessibility standards?

  • Conformity to coding standards or best practices?

  • Functional Accessibility?

  • Compatibility within a given environment?


Types of testing tools

Types of testing tools

  • Site-wide compliance scanning and validation tools

  • Single page scanning and validation tools

  • Single test point testing tools

  • Assistive technologies


Site wide tools

Site-wide tools

  • Automated testing of all static HTML pages.

  • Some support application testing

  • Limited support testing of content other than HTML. (PDF)


Examples

Examples

  • IBM/Watchfire (Used by Texas HHS)

  • DequeWorldspace

  • Web King

  • HiSoft


Benefits

Benefits

  • Good monitoring capabilities

  • Rapid results

  • Excellent support for site-wide accessibility compliance management


Limitations

Limitations

  • Complex to set up and maintain

  • Limited test coverage

  • Many checkpoints require human interpretation and judgment

  • Can give a false sense of security

  • Expensive


Single page document scanning tools

Single Page/Document Scanning Tools

  • Automated scan of web pages and documents.

  • Can flag both automatic check failures and highlight areas for manual inspection


Examples1

Examples

  • Wave

  • Functional Accessibility Evaluator (FAE)

  • DequeFireEyes


Benefits1

Benefits

  • Immediate feedback to developers and accessibility testing staff

  • Full coverage of accessibility checkpoints

  • Easy to deploy and use

  • Free!


Limitations1

Limitations

  • Slow

  • Requires expertise to understand the manual checkpoints

  • Requires user to understand how a particular tool evaluates a testpoint


Single test point testing tools

Single Test Point Testing Tools

  • Tests individual accessibility features on a page by page basis


Examples2

Examples

  • Accessibility Toolbar (IE)

  • Juicy Studios Accessibility Toolbar (FF)

  • Wave toolbar (FF)

  • Jim Thatcher’s Favelets (Any Browser)

  • Complex Table Toolbar (FF)


Benefits2

Benefits

  • Good identification of features and problems

  • Excellent source of screen shots for developers/contractors

  • Some support editing of source code

  • Free


Limitations2

Limitations

  • Some do not work well on framed pages

  • CSS or Table layout methods may hide problems

  • Slow


Assistive technology

Assistive Technology

  • Testing with screen readers, magnifiers, keyboard, or dictation software


Examples3

Examples

  • JAWS, NVDA, Window Eyes, VoiceOver

  • ZoomText, Magic

  • Dragon Dictate

  • Unplug the mouse


Benefits3

Benefits

  • Tests functional accessibility with specific technology

  • Approximates user experience

  • Identifies compatibility issues


Limitations3

Limitations

  • Tests functionality with specific technology

  • Not a substitute for usability testing by disabled users

  • Does not identify compliance issues.

  • Requires considerable expertise

  • Expensive


Conclusion

Conclusion

  • Compliance testing does not equal accessibility testing

  • The best tool will depend on the tester, the environment, and what is being tested

  • Wide variety of tools out there, build a big toolbox


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