DB-Status Computer Services Limited will always attempt to adhere to these guidelines when building websites for our clients.

Taken from www.w3c.org:

These guidelines explain how to make Web content accessible to people with disabilities. The guidelines are intended for all Web content developers (page authors and site designers) and for developers of authoring tools. The primary goal of these guidelines is to promote accessibility. However, following them will also make Web content more available to all users, whatever user agent they are using (e.g., desktop browser, voice browser, mobile phone, automobile-based personal computer, etc.) or constraints they may be operating under (e.g., noisy surroundings, under- or over-illuminated rooms, in a hands-free environment, etc.). Following these guidelines will also help people find information on the Web more quickly. These guidelines do not discourage content developers from using images, video, etc., but rather explain how to make multimedia content more accessible to a wide audience.

For those unfamiliar with accessibility issues pertaining to Web page design, consider that many users may be operating in contexts very different from your own:

• They may not be able to see, hear, move, or may not be able to process some types of information easily or at all.
• They may have difficulty reading or comprehending text.
• They may not have or be able to use a keyboard or mouse.
• They may have a text-only screen, a small screen, or a slow Internet connection.
• They may not speak or understand fluently the language in which the document is written.
• They may be in a situation where their eyes, ears, or hands are busy or interfered with (e.g., driving to work, working in a loud environment, etc.).
• They may have an early version of a browser, a different browser entirely, a voice browser, or a different operating system.

In order to advise on best practice to overcome these obstacles, W3C developed three different levels of conformance. These are:

• Conformance Level "A": all Priority 1 checkpoints are satisfied;
• Conformance Level "Double-A": all Priority 1 and 2 checkpoints are satisfied;
• Conformance Level "Triple-A": all Priority 1, 2, and 3 checkpoints are satisfied;

Each checkpoint has a priority level assigned by the Working Group based on the checkpoint's impact on accessibility.

For More Information
The WAI Web site provides guidelines and support material to help implement the guidelines, please see "Quick Tips to Make Accessible Web Sites." Other organizations also provide resources to help make the Web accessible.

Notes on Terminology
Web "content" generally refers to the information in a Web page or Web application, including text, images, forms, sounds, and such. More specific definitions are available in the WCAG documents, which are linked from the Web Content Accessibility Guidelines (WCAG) Overview.