Application works with External Assistive Technologies
Just as the software application needs to work with the operating system built-in assistive technologies and accessibility options so it must work with other assistive technologies. This means that an additional screen reader, alternative input device such as a switch or specialist keyboard should be able to access menus etc. Text to speech software should be able to read text that is added as content and magnification work with all elements. (CEUD 1.2, IBM 2.2, IBM 4.1, VPAT section 1194.21 (b), (c), (d), (l)).
Testing Techniques
These techniques may be used to perform the test.
Method
Try all the elements of the application with NVDA screen reader, Lightning Express magnification or Zoom on the Mac plus keyboard only access. Use Windows High contrast mode settings or Mac Display Adjustment If text input is part of the application's output make sure this can be read aloud.
Criteria for this Test
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Failure with external AT e.g. screen reader, keyboard only input, colour changes. |
|---|---|
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Main menu system responds to external AT. |
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Menu and additional features respond to external AT. |
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All elements of the application respond to external AT. |
