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Section 1194.21 Software Applications and Operating Systems
– Detail Vision Research Graphics, Inc. |
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Criteria |
Supporting Features |
Remarks and
explanations |
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(a)
When software is designed to run on a system that has a keyboard, product
functions shall be executable from a keyboard where the function itself or
the result of performing a function can be discerned textually. |
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Uses
standard Windows dialogs and menus with textual feedback. |
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(b)
Applications shall not disrupt or disable activated features of other
products that are identified as accessibility features, where those
features are developed and documented according to industry standards.
Applications also shall not disrupt or disable activated features of any
operating system that are identified as accessibility features where the
application programming interface for those accessibility features has
been documented by the manufacturer of the operating system and is
available to the product developer. |
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no
disruptions take place |
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(c)
A well-defined on-screen indication of the current focus shall be provided
that moves among interactive interface elements as the input focus
changes. The focus shall be programmatically exposed so that Assistive
Technology can track focus and focus changes. |
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Focus
is present and, since standard Windows interface are used, are
programmatically exposed |
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(d)
Sufficient information about a user interface element including the
identity, operation and state of the element shall be available to
Assistive Technology. When an image represents a program element, the
information conveyed by the image must also be available in text. |
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All
interface elements are text-based. |
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(e)
When bitmap images are used to identify controls, status indicators, or
other programmatic elements, the meaning assigned to those images shall be
consistent throughout an application's performance. |
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No
special icons or images are sued to represent information. |
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(f)
Textual information shall be provided through operating system functions
for displaying text. The minimum information that shall be made available
is text content, text input caret location, and text attributes. |
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MS
Windows functions are used in virtually all cases. |
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(g)
Applications shall not override user selected contrast and color
selections and other individual display attributes. |
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Overrides
are not done except in one critical situation which is made clear to the
user; 256-color mode is a requirement, but only for stimulus
presentation—not fro textual windows. |
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(h)
When animation is displayed, the information shall be displayable in at
least one non-animated presentation mode at the option of the user. |
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Animation
is only displayed at the specific request and control of user. |
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(i)
Color coding shall not be used as the only means of conveying information,
indicating an action, prompting a response, or distinguishing a visual
element. |
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Color
coding is never the only means of conveying information. |
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(j)
When a product permits a user to adjust color and contrast settings, a
variety of color selections capable of producing a range of contrast
levels shall be provided. |
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A
variety of color selections is available. |
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(k)
Software shall not use flashing or blinking text, objects, or other
elements having a flash or blink frequency greater than 2 Hz and lower
than 55 Hz. |
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Textual
windows do not use flashing or blinking text.
However, since this product is designed for performing research on
the visual system, such stimuli can be generated, but only at the explicit
command of the user. |
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(l)
When electronic forms are used, the form shall allow people using
Assistive Technology to access the information, field elements, and
functionality required for completion and submission of the form,
including all directions and cues. |
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Since
standard Windows interfaces are used in all cases, Assistive Technology
should have to access the information. |