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508 Compliance
508 Compliance

November 2007

1
Section 1194.21 Software Applications and Operating Systems-Detail
Voluntary Product Accessibility Template

Criteria A:
When software is designed to run on a system that has a
keyboard, product functions shall be executable from
keyboard where the function itself or the result of
performing a function can be discerned textually.
Supporting Features:
All BlueZone functions may be operated or set by using
the keyboard keys
Remarks and
Explanations:
Many of the session settings for BlueZone are supported by
checkboxes and radio buttons which are found in dialogs
and may be set by using the keyboard.

Criteria 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 the
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.
Supporting Features:
BlueZone runs on the Windows platform and inherits
Windows 508 compliance to support use by the disabled.
Remarks and
Explanations:
BlueZone has been modified to be completely 508
compliant.

508 Compliance

November 2007

2

Criteria 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.
Supporting Features:
BlueZone offers a number of features that indicate the
current focus of the screen.
Remarks and
Explanations:
Field focus can be indicated by a user-defined cursor size,
varying blink rate of the cursor and also display the cross-
hairs of the cursors placement on the screen. Any
supporting dialog the user receives will change and
brought to the front to indicate its focus. Focus is
exposed through Windows API calls.

Criteria 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.
Supporting Features:
All user interface elements are by default identified with
text. Secondarily, it may use a bitmap.
Remarks and
Explanations:
BlueZone is completely compatible with assistive
technology.

Criteria 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
applications performance.
Supporting Features:
All textual and graphical indicators are consistent
throughout the BlueZone emulator.
Remarks and
Explanations:


Criteria 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
Supporting Features:
BlueZone provides text, text input caret location, and text
attributes.
Remarks and
Explanations:


508 Compliance

November 2007

3

Criteria G:
Applications shall not override user selected contract
color selections and other individual display attributes.
Supporting Features:
All BlueZone color schemes are user-definable but do not
override the accessibility features of the operating
system. BlueZone supports the accessibility features of
Windows and conforms to the color and contrast specified
Remarks and
Explanations:



Criteria H:
When animation is displayed, the information shall be
displayable in at least one non-animated presentation
mode at the option of the user.
Supporting Features:
As a text based emulator, BlueZone does not utilize
animation.
Remarks and
Explanations:


Criteria 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.
Supporting Features:
BlueZone does not rely solely on the use of color coding.
The predominant indicators are cursor location, screen,
text, and window focus.
Remarks and
Explanations:


Criteria 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.
Supporting Features:
BlueZone provides a wide array of color choices, but does
not override the color and contrast settings of the
operating system.
Remarks and
Explanations:


Criteria 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.
Supporting Features:
BlueZone offers a user-definable blink rate for the carat.
The entire adjustable range is below 2 Hz.
Remarks and
Explanations:


508 Compliance

November 2007

4

Criteria 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.
Supporting Features:
BlueZone does not utilize electronic forms.
Remarks and
Explanations: