This is part of a continuing series of web accessibility tips for IT personnel, web managers and web development groups. These tips can be used to review current website accessibility and to utilize in developing new websites with the hope of improving web accessibility for everyone.
Flashing, strobing content can cause photo-epileptic seizures. In order to cause a seizure, strobing content must flash more than 3 times per second, be sufficiently large, and have significant contrast in the flashes. The color red is also more likely to cause a seizure. Bright flashing content, particularly in videos, must be avoided.
Showing posts with label seizures. Show all posts
Showing posts with label seizures. Show all posts
Wednesday, September 21, 2011
Wednesday, July 27, 2011
Web Accessibility Wednesday: WCAG 2.0
This is part of a continuing series of web accessibility tips for IT personnel, web managers and web development groups. These tips can be used to review current website accessibility and to utilize in developing new websites with the hope of improving web accessibility for everyone.
The Web Content Accessibility Guidelines (WCAG) 2.0 is a W3C (World Wide Web Consortium) specification for measuring web accessibility. WCAG 2.0 is based upon four core principles - perceivable, operable, understandable, and robust; or as an acronym - POUR. Ensuring POUR content across disabilities will ensure highly accessible web content. These guidelines are most useful as tools for implementing and evaluating accessibility, but true accessibility is determined by the end user experience, not by compliance to a set of rules. Level AA conformance with WCAG 2.0 is a common standard measure of good accessibility.
The Web Content Accessibility Guidelines (WCAG) 2.0 is a W3C (World Wide Web Consortium) specification for measuring web accessibility. WCAG 2.0 is based upon four core principles - perceivable, operable, understandable, and robust; or as an acronym - POUR. Ensuring POUR content across disabilities will ensure highly accessible web content. These guidelines are most useful as tools for implementing and evaluating accessibility, but true accessibility is determined by the end user experience, not by compliance to a set of rules. Level AA conformance with WCAG 2.0 is a common standard measure of good accessibility.
Wednesday, July 6, 2011
Web Accessibility Wednesday: Considering Various Disabilities
We will be posting a continuing series of web accessibility tips that IT personnel, web managers and web development groups can use in reviewing current website accessibility and in developing new websites. These tips were developed in partnership between the Association of Tech Act Programs (ATAP) and WebAIM with the hope of improving web accessibility for everyone.
Web accessibility is about reaching the broadest range of users regardless of age or disability. A web site can always be made more accessible, and thus, will always be inaccessible to someone. Guidelines, policies, and laws provide measures of accessibility that can be useful in establishing goals and in evaluating accessibility. Viewing web accessibility as a continuum on which improvement can always be made will help ensure that accessibility is continually improving and that it is about people, not merely compliance with law or guidelines.
Web accessibility affects the following disability categories
Visual disabilities - blindness, low vision, and color-blindness
Auditory disabilities - deafness and hard-of-hearing
Motor disabilities - difficulty using a mouse or keyboard
Cognitive or learning disabilities
Photo-sensitive epilepsy
While care should be taken when grouping anyone into a category, when approaching web accessibility issues, it's often useful to consider the distinct needs of users with each of these types of disabilities.
Web accessibility is about reaching the broadest range of users regardless of age or disability. A web site can always be made more accessible, and thus, will always be inaccessible to someone. Guidelines, policies, and laws provide measures of accessibility that can be useful in establishing goals and in evaluating accessibility. Viewing web accessibility as a continuum on which improvement can always be made will help ensure that accessibility is continually improving and that it is about people, not merely compliance with law or guidelines.
Web accessibility affects the following disability categories
Visual disabilities - blindness, low vision, and color-blindness
Auditory disabilities - deafness and hard-of-hearing
Motor disabilities - difficulty using a mouse or keyboard
Cognitive or learning disabilities
Photo-sensitive epilepsy
While care should be taken when grouping anyone into a category, when approaching web accessibility issues, it's often useful to consider the distinct needs of users with each of these types of disabilities.
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