3/14/2010
Step to Making a Web Site Accessible
3/10/2010
Week 6 poll result

3/09/2010
The problem with automated accessibility tools
The vast number of accessibility guidelines tend to be related to how the site is coded. Automated accessibility tools are unfortunately unable to check for many of the coding too. For example, HTML-related accessibility considerations which these tool's can't check for the coding as well.
2) Outdated guidelines are used
Automated accessibility tools generally uses the W3C accessibility guidelines, which by now are over five years old. As such, a number of guidelines were outdated and do not apply on it anymore. In fact, some of them are now thought to hinder accessibility rather than help, so it is better to totally ignore these outdated guidelines.
3) Most guidelines aren't properly checked
Automated accessibility tools can check for a number of guidelines, and can tell you when a guideline is not being adhered too. However, when the tool claims that a guideline is being fulfilled this may in fact be a false truth as automated accessibility tools were hardly recognize outdated guidelines.
4) Warnings may be misinterpreted
The reports generated by the automated accessibility tools provide warnings, as well as errors. These warnings are basically guidelines that the automated tool can't check for, but which may be errors. Often they are not, and in fact they are often not even relevant to it. However, some people reading a report may try to get rid of these warnings message by making an appropriate changes to their site for precaution. By doing this, they may be implementing guidelines that needn't be implemented and inadvertently lowering the website's accessibility.
As a conclusion, automated accessibility tools can be useful sometime as they can save a large amount of time in performing some very basic check for accessibility. However, they must be used with caution and they cannot be used as a stand-alone guide for accessibility checking. Indeed, some expert accessibility knowledge should always be applied in evaluating a site's accessibility not only replying on an automated accessibility tool itself.
3/08/2010
Accessibility tips
- They may not be able to see, hear, move or understand easily
- They may have difficulty reading or comprehending text.
- They may not have or be able to use a keyboard or a mouse.
- They may not have an early version of a browser.
- They may have a slow connection, a small screen, a text-only screen.
- They may not speak or understand fluently the language in the document written.
3/06/2010
Policy Relating to Web Accessibility
There is a growing body of national laws and policies which address accessibility of ICT which include the internet and the web as well. There is also a great variety of approaches among these laws and policies : some take the approach of establishing a human right to ICT ; others to approach that any ICT purchased by government must be accessible ; others that any ICT sold in a given market must be accessible and there are still other to be approach.
A separate document, addresses issues which frequently arise when establishing policies on web accessibility. There include, for instance, simple and comprehensive sample policy statements ; conformance levels for web sites as well as web related software ; defining the scope, milestones, and monitoring processes for web accessibility.
Source : http://www.w3.org/
3/03/2010
ColorBlindExt – Better Web Accessibility for Colorblind Users
The Firefox add-on called ColorBlindExt was released just recently and is a great support to discover things which you couldn’t see up to now. The developers describe it as follows:
After taking the test the filter will be set according to your results. This can be changed at any time. Also the filter can be completely enabled or disabled however you like.
Image obtained from : http://www.colblindor.com/2007/06/20/colorblindext-better-web-accessibility-for-colorblind-users/
Personally I like the image filtering on demand. Through this option, which is also available on the context menu when clicking on an image, pictures and diagrams can be enhanced according to my type of color deficient vision.
The developers took the image filtering even one step further. Through the settings you even can adjust the level of deficiency and a choose from a noise reduction and sharpening option. This lets you play around and find the settings which fit the best to your personal color vision.
The tool also has some limitations, which don’t really restrict the usage to me when I look at them.
Page contents like flash objects, applets, media players can’t be filtered, it is out of scope.
Only elements accessed by DOM are processed.
Unfortunately the installation isn’t a single click and run. I tried to summarize all requirements including the links to get the latest software if you are missing some of them. I hope this helps you to get your colorblind webpage filter up and running without a hassle. Be aware that you need administration privileges if you have to install new software like the Java run time environment.
Hopefully this tool will help you to access some websites more easily than before or to read some colorful and up to now undistinguishable chart lines. And I also hope this tool isn’t used as an excuse for web designers to disregard accessibility, especially concerning color blindness.
Source : http://www.colblindor.com/2007/06/20/colorblindext-better-web-accessibility-for-colorblind-users/