For each application, there are positive and negative implications. Each application has two rows. The barriers are in the first row; the attractors are in the second row.
(Visit the page that is indexed by user interface element)
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Application
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Deaf; TTY
users
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Hard of hearing
|
Vision loss
|
Dexterity
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Cognition
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Speech (incl. HCO)
|
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| Direct TTY | TRS - text only | TRS - VCO | ||||||
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Auto attendant (The system gives callers a menu of options and routes the phone call to a specific person or department.) and audiotext (The system gives callers a menu of options and then plays the selected information with recorded or synthesized speech.) |
Some TTYs cannot play touchtones during a call |
Time-outs may be too short for relay operator to type and user to reply |
Audio quality (both technical and as recorded by info provider) may be too low for users |
Time-outs may be too short | Speech may not be recognized | |||
| Access to company directory and information |
Control via same interface for placing calls Speech recognition interface can eliminate need to press buttons. |
No need to remember to turn it on. Control via same interface for placing calls |
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Voice mail (The system acts as an answering machine, playing the outgoing message and recording incoming messages, with an interface for both the caller and the subscriber.) |
TTY compatibility Required DTMF tones pose difficulties for TTYs that cannot play touchtones during a call |
Time-outs (see above) |
Audio quality (both technical and as recorded by info provider) may be too low for users |
Time-outs may be too short | Complexity and invisibility (compared to answering machine) | Speech may not be recognized | ||
|
audible message waiting could have voice notification of all messages |
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| All IVRs with screen-based features, including soft keys (such as business phones) | TTY compatibility | Time-outs | Time-outs | Audio quality (both technical and as recorded by info provider) may be too low for users |
Screen information may not available in another format |
May not be able to use keyboards, mice, etc. |
May be too complex | |
| could provide text access;could provide visual notification of voice messages and opportunity for transcription of voice to text. | Could provide redundant voice and visual simultaneously |
could provide voice notification of email, opportunity for transcription of email to voice for low vision users, could provide redundant voice and visual simultaneously |
Could provide redundant modes of information presentation. | |||||
| Audio network messages | TTY Compatibility | Audio quality (both technical and as recorded by info provider) may be too low for users | ||||||
| Visual network messages | ||||||||
| Automatic Call Distribution (ACD) | ||||||||
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All of the preparation, training and end user documentation must be accessible. (i.e., captioning for all videos, braille or accessible electronic format for all paper documents)