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accessibility general standards development usability webdesign design resources reading FUSION09

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Sandra Earl

Digital Web Magazine - Understanding Disabilities when Designing a Website - 0 views

www.digital-web.com/...ities_when_designing_a_website

accessibility design standards general development FUSION09

shared by Sandra Earl on 12 Oct 10 - Cached
  • In the UK In the US 2m people have a vision impairment3 10m people have a vision impairment4 8.2m people have mild to moderate deafness5, 688,000 people have severe to profound deafness6 28m people have a hearing impairment7 3.4m people have a physical disability8 8m people have a physical disability9 1.5m people have a learning disability10 6.8m people have a learning disability11 6m people have dyslexia12 25m people have dyslexia13
  • Most people who are blind will rely on screen reading software such as
  • JAWS or Windows-Eyes
  • ...41 more annotations...
  • refreshable Braille device which converts the text on the website into Braille.
  • Place form instructions before the form field
  • To improve accessibility and usability for screen reader users, form field requirements must be placed before the form field itself.
  • Provide a ‘skip to main content’ link Screen reader users benefit from a ‘skip to main content’ link as it enables them to jump over lengthy navigation to the main content of the web page, reducing the amount of content they have to listen to.
  • Ensure link text is descriptive Screen reader users using software such as JAWS can listen to the links on a web page through functionality known as a links list. If link text is not descriptive—solely using phrases such as “click here” or “more information”, for example—there is no way for screen reader users to determine where the link will take them.
  • Provide descriptive web page titles The first piece of information a screen reader user will listen to when they open a web page is the <title> assigned to the page. It is important, therefore, to use a title which reflects the content of the web page.
  • Provide descriptive headings It is important to provide descriptive headings
  • Screen reader users often listen to headings out of context from the main content
  • Provide audio descriptions and transcripts of video content Screen reader users depend on audio descriptions to provide additional information about important visual content displayed within a video.
  • Transcripts are written accounts of the video or audio content and can include additional information such as comments and descriptions
  • screen reader users cannot use a mouse
  • People with low vision will tend to use magnification software to make reading a website easier. Depending on the severity of their vision impairment, these users may combine magnification and screen reading software by using software products such as Supernova or ZoomText. For milder vision impairments, users may just increase the default size of text within their browser settings or change the colors to make the content more comfortable to read.
  • Avoid using images of text
  • Ensure text can be resized
  • Place key information in specific locations of the screen
  • ebsite search functionality is often located in the top-right corner of the web page
  • Juicy Studio color contrast analyzer.
  • it is possible to determine whether the colors chosen meet the minimum requirements specified in the WCAG Guidelines.
  • People with a hearing impairment tend not to use assistive software to improve their web browsing experience. Instead, they rely on the website being accessible by providing any audio content in alternative formats, such as captioning or transcripts.
  • By making audio content accessible for users with a hearing impairment, it also makes the content accessible for other users who find themselves in an environment where audio cannot be heard.
  • library with the sound turned down; they may be in a noisy environment where it is difficult to hear the audio; or they may be using a computer without speakers.
  • Provide captions for any video content
  • Provide transcripts of the spoken audio Where content is spoken without video, such as in a podcast, it is important to provide a transcript. It is recommended that the transcript be provided in plain accessible HTML to allow access by the widest possible audience, as opposed to a Microsoft Word or Adobe PDF document.
  • Physical disabilities range in severity from those who are temporarily disabled, for example having a broken arm, to those who are quadriplegic and have no use of any limbs. Depending on the severity of the physical disability, these users may access websites through voice recognition software such as Dragon Naturally Speaking.
  • However, what all users with a physical disability have in common is limited or no ability to use a mouse. This means that content within the website that requires a mouse click or fine motor control cannot be accessed by these users.
  • Ensure all content can be accessed via the keyboard
  • Users with a physical disability will have limited or no ability to use a mouse and as such will navigate websites using the keyboard.
  • Provide a focus state for links
  • Provide visible skip links Skip links are links that become visible when they receive focus, and are helpful for users with a physical disability. Keyboard users must tab through the web page to reach the particular link they are interested in—skip links allow lengthy navigation to be bypassed and reduce the number of key presses required to activate links in the main content.
  • Avoid moving targets Avoid using moving targets such as tickers, as users with a physical disability can find them very difficult to use.
  • Provide large clickable areas
  • provide sufficient whitespace between links
  • People with a cognitive or learning disability may have difficulties with memory, problem solving, perception, and conceptualization. In addition, people with a learning disability may have issues with reading and comprehension such as dyslexia.
  • To enhance the usability of the website for these users it is important that content is written in plain English, page layouts are simple in design, navigation is clear and consistent and there is no moving content to impede comprehension.
  • Provide the same look and feel throughout all pages of the website. Ensure that the navigation and main content are located in the same area of every page. Additionally, consider color coding different sections within the website. Users with cognitive or learning disabilities tend to find it easier to navigate around sections which are color coded.
  • Provide a site map A site map will enable users with a cognitive or learning disability to have a clear idea of the breadth of content contained within the website. The site map also enables users to directly access any page on the website, and helps if the user becomes lost.
  • Use a resizable sans-serif font which is left-aligned To increase readability for users with a cognitive or learning disability, use a sans-serif font which can be resized. Additionally, left-align content—justified text is more difficult to read due to the uneven spacing between words. Italicized and capitalized text should also be kept to a minimum to aid readability.
  • Provide helpful error messages
  • Offer speech output Organizations such as Browse Aloud and Textic enable content from a website to be spoken when highlighting the words on a web page. Offering this functionality is especially helpful for users who find it difficult to read large amounts of text.
  • Provide an Easy Read Version Consider providing an ‘easy read’ version of complex content. This combines plain text with images to aid understanding of the information. For an example of an easy read document see the Department of Health’s Making Lives Better for People with a Learning Disability.
  • Provide different color schemes People with cognitive or learning disabilities may benefit from different color scheme options. It is helpful if an easy read scheme such as a lemon background with dark text, and a hi-viz scheme such as a black background with yellow text, are provided.
Sandra Earl

E-Access Blog » Blog Archive » People With Impaired Vision 'Less Likely To Be... - 0 views

www.headstar.com/eablive

accessibility blindness vision general FUSION09

shared by Sandra Earl on 12 Oct 10 - Cached
  • The RNIB report finds people over 55 are three times more likely to have seeing difficulties as those in the 16-24 age bracket, which is a greater increase with age than with other kinds of disabilities.
  • In addition, the report finds that people who are disabled with seeingdifficulties are less likely to be employed (48 per cent) than those with other kinds of disability (50 per cent); this compares to an overall employment rate of 75 per cent among people of working age. For people with more than one disability, the employment rate drops to 38 per cent, however for people with ’seeing difficulties’ that do not constitute a disability the rate is much higher at 83 per cent. The unemployment rates are 8 per cent for disabled people as a whole but 13 per cent for those disabled by visual impairment. In contrast, the report also found that a higher than average proportion of visually impaired disabled people are employed in high-level positions.
Sandra Earl

Introduction to screen readers and screen magnifiers | 456 Berea Street - 0 views

www.456bereastreet.com/..._readers_and_screen_magnifiers

accessibility screen reader general resources FUSION09

shared by Sandra Earl on 12 Oct 10 - Cached
  • And that leads me to three great videos posted on the Yahoo! User Interface Blog: In Introduction to Screen Readers, Yahoo! engineer Victor Tsaran talks about who will be likely to use a screen reader, how screen readers work, and how they can be used to interact with the computer desktop and to browse web sites. In Introduction to Screen Magnifiers, Karo Caran shows how the screen magnifier ZoomText is used to make the computer desktop and web sites readable to people with reduced vision. And finally, in From the Mouth of a Screenreader, Doug Geoffray from GW Micro (Window-Eyes vendor) talks about the history of screen reading software and how they analyse what is displayed on the screen in order to speak it to the user.
Sandra Earl

Designing for Dyslexics: Part 1 of 3 - Accessites.org - 0 views

accessites.org/...ning-for-dyslexics-part-1-of-3

accessibility cognitive learning disabilities dyslexia FUSION09

shared by Sandra Earl on 12 Oct 10 - Cached
  • The specific needs of dyslexics tend to be overshadowed by the more widely understood needs of the visually impaired. Unfortunately, design decisions that benefit the latter group tend create problems for the former. This is never more evident than in so-called “accessible” text only pages with their emphasis on high contrast and complete lack of images and colour.
  • What is Dyslexia?
  • The word “dyslexia” can be broken down into two parts: “Dys” meaning poor and “lexia” meaning language. Thus dyslexics have difficulties with words. Current theories suggest that
  • ...10 more annotations...
  • it is not a visual problem but a word decoding, or recognition deficit.
  • Our ability to recognise words is thought to be based upon two slightly different “memory skills” — phonetic memory and lexical memory. Dyslexics may have a good phonetic memory — as evidenced by their tendency to spell many words phonetically — but a very poor lexical memory.
  • No two dyslexics demonstrate their disorder in the same manner. It can affect boys and girls equally, across all socioeconomic classes worldwide.
  • “A combination of abilities and difficulties that affect the learning process in one or more of reading, spelling and writing.
  • Accompanying weaknesses may be identified in areas of speed of processing, short-term memory, sequencing and organisation, auditory and/or visual perception, spoken language and motor skills. It is particularly related to mastering and using written language, which may include alphabetic, numeric and musical notation.”
  • the more complex the written language is, the greater the likely percentage of people who will have difficulty reading it.
  • As many as 1 in 10 people in the UK are dyslexic.
  • Worldwide, it is likely that the number of dyslexics is likely to be equal to, if not significantly larger than, the number of visually impaired people.
  • poor short-term memory and organisational skills will mean that site navigation and page organisation become more important.
  • high contrast text difficult or impossible to read. The phrases I’ve heard most often are “the text keeps moving” or “the words seem to dance on the page.”
Sandra Earl

Web Axe - Practical Web Design Accessibility Tips - Podcast and Blog: Paul Boag wears r... - 0 views

webaxe.blogspot.com/...wears-reading-glasses-and.html

accessibility general elderly FUSION09

shared by Sandra Earl on 12 Oct 10 - Cached
  • In Boagworld podcast episode 130, I discovered that in order to help test web accessibility, Paul Boag wears glasses (that he doesn't need) and gloves and attempts to navigate through a site. Excellent idea!In order to better understand [the elderly's] experience I have bought a pair to ski gloves and some reading glasses (I don't need reading glasses). Every now and again, I surf the site I am designing wearing both the glasses and gloves. The glasses make the screen hard to read while the gloves hamper my use of the mouse and the keyboard. There is nothing more frustrating than trying to select something from a drop down menu wearing ski gloves!
Sandra Earl

WebAIM: Screen Reader Survey Results - 0 views

webaim.org/...screenreadersurvey

accessibility vision blindness screen reader WebAIM general FUSION09

shared by Sandra Earl on 12 Oct 10 - Cached
  • We received 1121 valid responses to the screen reader survey, which was conducted Dec. 2008 - Jan. 2009.
  • Skip to content22% Skip to main content28%
  • 33 respondents (2.9%) reported being both deaf and blind.
  • ...33 more annotations...
  • Please rate your computer proficiency Response% of Respondents Expert22% Advanced44% Intermediate27% Beginner8%
  • Please rate your screen reader proficiency Response% of Respondents Expert17% Advanced41% Intermediate32% Beginner9%
  • Screen Reader Usage
  • Of the 1121 respondents, 74% use JAWS, 23% use Window-Eyes, 8% use NVDA, and 6% use VoiceOver. While several other screen readers were reported, these were the most prominently reported. Individual versions of screen readers are not yet computed, but generally the majority of users are using the most up-to-date version of their screen reader.
  • How soon do you update your screen reader after a new version is released? Upgrade Window% of Respondents Immediately41% First 6 months25% 6-12 months9% 1-2 years9% 2-3 years4% 3+ years6% No response6%
  • How customized are your screen reader settings? (e.g., changed verbosity, installed scripts, etc.) Response% of Respondents A lot29% Somewhat40% Slightly21% Not at all7% No response4%
  • a lot or some customization was reported by only 27.6% of respondents with no disability versus 71.4% for those that reported blindness.
  • 78% of respondents reported using a screen reader on a desktop computer, 54% use a screen reader on a laptop, and 12% use a screen reader on a mobile phone.
  • No respondents who use screen readers for evaluation reported using a screen reader on a mobile device.
  • Which web browser(s) do you currently use with a screen reader? Browser% of Respondents IE633% IE768% IE82% Firefox39% Safari6%
  • Respondents with no disability were nearly twice as likely to list Firefox as blind respondents - 66% to 37%.
  • The percentage of Safari users is over double that of the overall population - this may be due in part to the fact that some in the Mac community actively solicited survey participation and encouraged respondents to indicate their Safari use, perhaps partially due to feeling snubbed because we didn't list them with IE and Firefox as direct choices.
  • When first accessing a new, unfamiliar home page, I'm most likely to... Response% of Respondents Read through the home page46% Navigate through or listen to the links on the page35% Use the Search to find what I'm looking for13% Look for a site map or site index3% No Response2%
  • Interestingly, the more proficient screen reader users are more likely to read through the home page and use links less often than less proficient screen reader users. This may be due to faster reading speeds for more experienced users. The home page strategies used were very similar regardless of proficiency, disability, or amount of screen reader use.
  • I use "skip to content" or "skip navigation" links... Response% of Respondents Whenever they're available22% Often16% Sometimes28% Seldom19% Never10% No Response4%
  • Some questions were of a technical nature and we understand that many participants may not have been very technically savvy. Responses may also be based upon user experiences with web content that is generally inaccessible. We cannot help but wonder if responses may have been different if screen reader interactions with web content were typically very positive.
  • I use Access keys... Response% of Respondents Whenever they're available22% Often16% Sometimes28% Seldom19% Never10%
  • I navigate by headings... Response% of Respondents Whenever they're available52% Often24%
  • 76% always or often navigating by headings when they are available.
  • I use site search functionality... Response% of Respondents Whenever it's available26% Often25% Sometimes31%
  • Find the word "Search"18% Jump to the first text/edit field on the page25%
  • Jump to the first form element in a page36%
  • Proficient screen reader users were more than twice as likely to jump directly to the form or text/edit field than less proficient users. Less proficient users were nearly three times more likely to use more manual methods (reading, tabbing, or finding) than more proficient users.
  • a majority of respondents seldom or never use site maps. There was no marked difference in the use of site maps across screen reader proficiency or disability. In general, it appears that site maps may be beneficial, but are not commonly accessed by screen reader users.
  • Text-only versions are always used by many and never used by many. As such, it is very difficult to interpret the value they have for screen reader users. More proficient screen reader users were much less likely to use text-only versions than less proficient users. This may suggest that proficient users employ sufficient techniques to render the main version acceptable to them. Or, it may suggest that proficient users do not gain value in using text-only versions, which are often less than optimal.
  • If content is identified as being "for screen reader users", how often do you use it? Response% of Respondents Whenever it's available38% Often15% Sometimes25% Seldom13%
  • A closer analysis, however, reveals that pop-up windows are reported as very difficult twice as often by less proficient screen reader users than with higher proficiency. Alternatively, more proficient users were three times more likely to indicate that pop-up windows are not at all difficult. This shows that less proficient screen reader users (which represent 41% of respondents) have more difficult experiences with pop-up windows.
  • Firefox users were much more likely to give a favorable response, perhaps a reflection of Firefox support for ARIA, etc. Evaluators and those without disabilities were nearly twice as likely to indicate that these applications are not very or not at all accessible than those that always use screen readers or have disabilities. This may suggest that these applications are actually more accessible than evaluators believe them to be, or alternatively, that screen reader users with disabilities are less knowledgeable about the true inaccessibility of these technologies.
  • 66% of evaluators preferred that the image be ignored, compared to only 28% of those that always user a screen reader. Similarly, 65% of those with no disability preferred that the image be ignored, compared to 29% of those with disabilities.
  • If a web page contains a photo of the White House, I prefer that the image be identified as... Response% of Respondents Photo of the White House80%
  • 69.4% of evaluators found them difficult compared to only 42.6% of those that always use a screen reader. Those with higher screen reader proficiency naturally found these links easier.
  • 71.5% of screen reader users reported that Flash is difficult
  • While the majority (58%) of users reported that frames are easy, those that are blind were 3 1/2 times more likely to indicate that they are easy than those with no disability. Similarly, those that always use a screen reader reported frames as easy nearly 3 times more often than evaluators. This perhaps suggests a misconception among those that do not have disabilities that frames are very inaccessible when in fact those with disabilities find them easy.
Sandra Earl

Web 2.0: Understanding Web Accessibility - 0 views

infosysblogs.com/...standing_web_accessibilit.html

accessibility general FUSION09

shared by Sandra Earl on 12 Oct 10 - Cached
  • As stated by renowned accessibility expert Shawn Lawton Hewitt, Web Accessibility simply means that people with disabilities can use the Web.  More specifically, Web Accessibility means that people with disabilities can perceive, understand, navigate and interact with the Web.
  • It is important to understand one aspect that most experts agree on – an individual web site can never be perfectly accessible to everybody. This has to do with the sheer diversity of disabilities as well as the potential overlap of multiple disabilities. But a systematic approach like implementing the WCAG guidelines can go long way in accommodating a very large number of people.
Sandra Earl

YUI Theater - Victor Tsaran: "Introduction to Screen Readers" » Yahoo! User I... - 0 views

yuiblog.com/...video-intro-to-screenreaders

accessibility screen reader general multimedia FUSION09

shared by Sandra Earl on 12 Oct 10 - Cached
  • YUI Theater’s newest video is a 27 minute Introduction to Screen Readers by Victor Tsaran, an engineer here at Yahoo! and our Program Manager for Accessibility.
Sandra Earl

YUI Theater - Karo Caran and Victor Tsaran: "Introduction to Screen Magnifier... - 0 views

yuiblog.com/...deo-intro-to-screen-magnifiers

accessibility screen magnifiers general multimedia FUSION09

shared by Sandra Earl on 12 Oct 10 - Cached
  • With the goal of better understanding how people interact with the Web via various types of Assistive Technology (AT) — and what that might mean for developers and designers — Karo Caran takes us on a 16 minute overview of screen magnification software (in this case ZoomText) and how it is used by partially-sighted users to interact with the Web. Karo shows you the basic toolkit and then applies those tools to some typical web sites to give you some perspective on how she uses magnification software while she browses the web.
Sandra Earl

YUI Theater - Doug Geoffray: "From the Mouth of a Screenreader" » Yahoo! User... - 0 views

yuiblog.com/...video-geoffray

accessibility screen reader general multimedia FUSION09

shared by Sandra Earl on 12 Oct 10 - Cached
  • he context is important for us on the frontend as we begin to confront the same challenges that desktop software developers have been addressing for many years.
  • Doug been a touchstone for us at YUI in the research and development of our Menu Control, a project that is helping us to lay a foundation for what is possible in terms of DHTML accessibility as YUI evolves.
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