blog
1.8.2010
Equal Opportunity for all on the web
Everyone is entitled to access information on the web. Through the use of different methodology we can ensure that everyone can access the content we upload to the web.
Colour Blindness - accessibility requirements
• Colour should not be used to portray meaning on websites. For example, do not use red writing to fill in forms. If it is unavoidable provide an alternative method of relaying the information.
• Test your images by de-saturating their colour before using them on your web page.
• Avoid using red and green together, and yellow and blue together.
• Descriptions, labels or links to similar content should be provided to explain the purpose of images, content or meaning that may not be distinguishable to people who are colour blind.
• Avoid colour keys on images. Use text labels instead.
• Use effective colour contrast for text and images, excluding design ornamentation, images that have no contrast requirement and logotypes or brand names have no minimum contrast requirement.
Deafness - accessibility requirements
• Offer captions for all audio content and movie clips. If captions are not available provide a description of the content or a link to comparable information instead.
• Use images and illustrations to portray meaning whenever possible.
• Offer sign language translations for all content, including information, ideas, and processes that are used to understand each web page. You must also offer an overview of the entire website , including how to contact the Webmaster.
• Supply text alternatives for movie clips, audio and sensory experiences so that it can be changed into Braille, sign language or simpler language.
• Use labels for items that rely only on sensory information to be understood.
• If audio plays automatically after three seconds a volume control or pause and stop controls must be provided.
• Give users enough time to read and use the website. If this is not possible, let users turn off the time limit or adjust it.
• Use clear and concise language in a comprehensible sequence. Do not use unusual words. If you do, offer a definition or link to a definition.
Visual and Auditory Perception including Dyslexia - accessibility requirements
• Text size should be at a minimum of 12pts and allow text to be enlarged, by selecting view>text size in the browser window.
• Use a rounded font and/or generous line spacing, especially between paragraphs.
• Avoid writing text in all capitals, italics , using moving text and the right justification of text.
• Try to use off-white or light pastel backgrounds, rather than white backgrounds behind black text.
• Give users enough time to read and use the website. If this is not possible, let users turn off the time limit or adjust it.
• Use clear and concise language in a comprehensible sequence. Do not use unusual words. If you do, offer a definition or link to a definition. And try to refer to the reader as 'You'.
• Keep columns at a length of 70-80 characters wide.
• Use images and illustrations to portray meaning whenever possible.
• Make sure that your document is highly structured, using headings, lists, short paragraphs and indented quotes. Provide labels of items that to aid understanding, use clear navigation and include a site map.
• Always provide the expanded version of an abbreviation or acronym on first use. Use and tags to help users understand.
• Provide captions and short descriptions for audio content and movie clip.
• Offer an overview of the entire website , including how to contact the Webmaster.
General Accessibility Requirements:
• Supply alternative text and descriptions of movie clips, audio and sensory experiences so that it can be changed into large print, Braille, speech, sign language or simpler language.
• When creating your website ensure flexibility - that content can be arranged in different ways yet still be coherent. Ensure that layouts are simple and flexible.
• Websites should be clear and easy to hear and read. Make sure that the foreground stands out from the background.
• Give users options for time-based media including spoken audio, music, animations and film clips
• Allow all functions and commands for your website to be made from a keyboard.
• Do not create content in any way susceptible to cause seizures.
• Use clear navigation and provide a site map.
• Give users enough time to read and use your website. If not possible, let users turn off the time limit or adjust it.
• Provide clear and coherent text. Make sure that content is precise and can be easily read.
• Assist website users in preventing errors and enabling them to correct their mistakes.
• Ensure consistency and compatibility with browsers and assistive technologies.
• Your website should be designed and operate predictably.
Alternate Text - Requirements
• Supply concise descriptions of movie clips, audio and sensory experiences so that it can be changed into large print, Braille, speech, sign language (for audio tracks) or simple language.
• Use clear and concise labels to help users understand content. Done by using ALT tags.
• Use clear and concise language in a comprehensible sequence. Do not use unusual words. If you do, offer a definition or link to a definition.
• Ensure layout and design ornamentation can be ignored by assistive technologies.
• Offer enlarged sizes of non-text content when it can't be converted to text or provide a link to comparable information.
• Text size should be at a minimum of 12pts and allow text to be enlarged, by selecting view>text size in the browser window.
• Use a rounded font and/or generous line spacing, especially between paragraphs.
• Avoid writing text in all capitals, italics , using moving text and the right justification of text.
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- Equal Opportunity for all on the web