Web developers must satisfy this item.
All Section 508 Standards are included in Priority 1. These guidelines
represent the highest priority of accessibility features that must
be addressed in web page design.
Go to Priority 1 Item 1
Provide a text equivalent for every non-text element (e.g.,
via "alt", "longdesc", or in element content).
This includes: images, graphical representations of text (including
symbols and logos), image map regions, animations (e.g., animated
GIF's), applets and other programmatic objects, graphical buttons,
audio, video, itc.. [W3C WCAG 1.0, 1.1] [Sec.508 1194.22(a)]
Go to Priority 1 Item 2
Ensure that all information conveyed with color is also
available without color, for example from context or markup. [W3C
WCAG 1.0, 2.1] [Sec.508 1194.22(c)]
Go to Priority 1 Item 3
Use style sheets to control presentation while ensuring
that all content is accessible in user agents that do onot support
or do not fully support style sheets. [W3C WCAG 1.0, 6.1] [Sec.508
1194.22(d)]
Go to Priority 1 Item 4
Avoid causing the screen to flicker. [W3C WCAG 1.0, 7.1]
[Sec.508 1194.22(j)]
Go to Priority 1 Item 5
Client side image maps should be provided instead of server
side image maps. If you must use server-side image maps, provide
redundant text links for each link on the image map. [W3C WCAG 1.0,
1.2 and WCAG 1.0, 1.5] [Sec.508 1194.22(e) and 1194.22(f)]
Go to Priority 1 Item 6
Use of frames is discouraged. If you must use frames, title
each frame to facilitate frame identification and navigation. [W3C
WCAG 1.0, 12.1] [Sec.508 1194.22(i)]
Go to Priority 1 Item 7
Ensure that foreground content is easily distinguishable
from the background, particularly when viewed by someone with color
deficits. [W3C WCAG 1.0, 2.2]
Go to Priority 1 Item 8
Clearly identify the target of each link. [W3C WCAG 1.0,
13.1]
Go to Priority 1 Item 9
Use markup according to specification. For example, use
header elements to convey document structure. Mark up lists and list
items properly. Mark up quotations. Do not use quotation markup for
formatting effects such as indentation [W3C WCAG 1.0, 3.5; WCAG 1.0,
3.6; WCAG 1.0, 3.7]
Go to Priority 1 Item 10
Use markup to identify the primary natural language of a
document and any changes in its natural language, (including those
in text equivalents, captions, etc. [W3C WCAG 1.0, 4.1 and WCAG 1.0,
4.3]
Go to Priority 1 Item 11
Make scripts and applets that allow users to interpret or
access page content, or any other element that has its own interface,
compatible with assistive technologies, and ensure that event handlers
are input device-independent. [W3C WCAG 1.0, 6.4; WCAG 1.0, 8.1;
WCAG 1.0, 9.2] [Sec.508 1194.22(m)]
Go to Priority 1 Item 12
Ensure that all content is accessible when scripts, applets,
or other programmatic objects are turned off or not supported. If
this is not possible, provide equivalent information on an alternative
accessible page. (See also P1, #1, #11, #19) [W3C WCAG 1.0, 6.3]
Go to Priority 1 Item 13
For data tables, identify row and column headers. Use markup
to associate data cells with header cells for data tables that have
two or more logical levels of row or column headers [W3C WCAG 1.0,
5.1 and WCAG 1.0, 5.2] [Sec.508 1194.22(g) and 1194.22(h)]
Go to Priority 1 Item 14
Provide summaries for data tables. If a table is used only
for layout, provide an empty summary attribute (e.g., summary=" ").[W3C
WCAG 1.0, 5.5]
Go to Priority 1 Item 15
Use markup to associate all form controls with their labels.
[W3C WCAG 1.0, 10.2 and WCAG 1.0, 12.4] [Sec.508 1194.22(n)]
Go to Priority 1 Item 16
For any time-based multi-media presentation (e.g., movie or animation)
synchronize equivalent alternatives (e.g., captions or auditory
descriptions of the visual track) with the presentation. [W3C WCAG
1.0, 1.4] [Sec.508 1194.22(b)]
Go to Priority 1 Item 17
When a timed response is required, the user shall be alerted and
given sufficient opportunity to indicate more time is required.
[Sec.508 1194.22(p)]
Go to Priority 1 Item 18
Provide a method that permits users to skip lists of links
repeated on every page in a site, such as navigation links. [W3C
WCAG 1.0, 13.6] [Sec.508 1194.22(o)]
Go to Priority 1 Item 19
If you cannot create an accessible page, provide a link
to an alternative page that is accessible, has equivalent information
(or functionality), and is updated as often as the inaccessible (original)
page. [W3C WCAG 1.0, 11.4] [Sec.508 1194.22(k) and 1194.22(l)]