Desktop Technology Training

goldbashedΤεχνίτη Νοημοσύνη και Ρομποτική

15 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

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California State University, Fullerton

Campus Information Technology

Desktop Technology Training





For additional details about this and other courses,
contact Timothy Benbow 714.278.4417


Checking your website for accessibility

It is important to remember that the automatic scans the university performs only

checks for the most basic
accessibility. To ensure your site
and content is accessible it is essential to check your site and evaluate its
accessibility. Below is a checklist of points you can use to help evaluate your sites accessibility.


Structural Accessibility

1.

Is the site layout accessible? Are you using DIVs f
or containers or is your s
ite layout created with
tables?
Tables should only be used for actual data or
simple two

column forms

(label and field)

that you
create. DIV’s allow for a linear presentation of content.

2.

Is the appearance (positioning and presenta
tion) of the
page content

implemented with
external
CSS?
CSS allows designers to separate content and structure from visual presentation. This allows for the full
use of DIVs for layout and removes clutter from your pages and allows adaptive technology to
more
easily access the content.

3.

Have you removed all spacer gifs? Spacing on a webpage should always be done with CSS.

4.

Does the HTML and CSS code on your site validate to a standard? Checking the code
behind

your site
for valid syntax will ensure that adap
tive technology can access the structure of your site without
problems.

Browser specific code should be avoided if possible.

5.

Have you removed all frames from your pages? Frames are a way of allowing multiple web documents
to appear in a single window. Fram
es should only be used when there is no other alternative. If frames
are used, they should be labeled with descriptive text so that the user is aware of the area of the page
they are on.

6.

Is the width of your site fixed or elastic? Elastic layouts allow for

the content of a page to fit into screens
with lower resolutions. If you are using an elastic layout, have you limited the text line length?

7.

Has another developer familiar with ATI concepts and development reviewed your site for accessibility?


Navigation

Accessibility

1.

Are your hyperlinks accessible? The link text should be descriptive enough to tell a visually impaired
individual
where

the link will take them.

2.

Have you created a Skip Navigation link to take users past the navigation areas and to the main
content? Your Skip navigation link should become visible and active when it has keyboard focus.

3.

Is the navigation on your pages consistent

and logical
? Did you include breadcrumb navigation for
content more than three levels deep?

Consistent and logical na
vigation assists all users in quickly
finding and accessing information.

4.

Do you set links to open new windows only when logical and necessary? New windows present difficulty
in navigating back to the link source for some users. Generally links should only
open in new windows if
the content type is different from the source, for example a PDF document or mp3 audio file.


Content Accessibility

1.

Is your text marked up with semantic tags? Semantic tags such as headings and lists, em and strong
give the visually

impaired user more information about the content they are accessing.



California State University, Fullerton

Campus Information Technology

Desktop Technology Training





For additional details about this and other courses,
contact Timothy Benbow 714.278.4417

2.

Do all of your images have alternative text or long description files? Alt text should be used for simple
images that can be described in 128 characters or less. Complex images should be

describe with long
description files.

3.

Are your tables tagged and accessible? Simple tables should use the
appropriate

tags to distinguish
headings and data. In addition if there are multiple row or column headings, scope should be used to
define the headi
ngs. For very complex tables, a text description of the structure that is linked to the title
of the table may be useful.
Data tables should always present information in the simplest way possible.

4.

Does the use
of color on your site improve or hinder acces
sibility? Text and Backgrounds should hav
e
as much contrast as possible and the background should not interfere with reading the text in any way.
Patterned or textured backgrounds should only be used very selectively and only when the pattern does
not nega
tively affect readability. Color should also not be the only way information is referenced or
highlighted. For example, links can be a different color, but they must also have another non
-
color
based visual clue that the text is a link, such as an underlin
e. Hover effects are not enough to make the
link accessible.

5.

How accessible is your text? The font used should be clear and easy to read. The font size should be
readable and should indicate what kind of text the user is looking at (heading, body text, li
st, etc.). Text
spacing should be enough to clearly show separations between text elements (for example between
body text paragraphs)
, Font sizes and spacing should be coded in proportions not fixed units.
Does the
color of your text contrast as much as po
ssible enough with the background
.

6.

Are changes in language indicated in the document? If the document is all one language, no language
declaration is needed. If the language changes, this must be indicated. For example a Spanish
language version of a web p
age on a site that uses English as its main language but have a language
declaration.

7.

Are your form elements all labels descriptively? Is the tab order of the fields on your form logical and
consistent

from form to form on your site? Is the structure of yo
ur form accessible?

If your form has
multiple parts or has more than 20 fields, can the user save the form data and complete it later?

8.

Are the documents that are linked to your pages (Word, PDF,
PowerPoint,

etc
) structurally and content
accessible?

9.

Are aud
io and video elements on your pages captioned / transcribed? Did you include descriptive audio
for visual video tracks without audio?

Can the user control the media playback (play, pause, etc).
If you
have an interactive element on your page, have you elim
inated any time limits for a response?

10.

Do you have links to any players or viewers needed to access content? For example Adobe Acrobat
Reader or Flash player.

11.

Have you removed all Flash content from your site? Flash has many accessibility issues and should
only be used if you are certain you know how to make it accessible to all users. Are using JavaScript
only when needed? JavaScript should not be used for navi
gation unless it is accessible.

12.

Have you removed any flickering or flashing elements from your site? Flickering or flashing elements
may cause issues for individuals prone to seizures.

13.

Have you presented your content and navigation in the simplest most d
irect way possible? Could
simplifying the organization, structure or navigation of content make the material more accessible?

14.

If you site has frequent updates, have you considered using an RSS f
eed to allow users to subscribe
and have new content sent to t
hem rather than relying on them finding the new material?

15.

Is all of your content clearly dated? Have you removed all expired material from your site? Sometimes
we rely on visual clues to estimate the age of content and how current the information is.

16.

Has
another content author familiar with accessibility reviewed your content for accessibility?