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Vernon Fowler

WebAIM: Alternative Text - 0 views

webaim.org/alttext

accessibility resources alt text images logos figure markup html

shared by Vernon Fowler on 27 Nov 13 - No Cached
  • Alternative text should not: be redundant (be the same as adjacent or body text). use the phrases "image of…" or "graphic of…".
  • Identifying the logo as actually being a logo (alt="Acme Company Logo") is not typically necessary.
  • If the fact that an image is a photograph or illustration, etc. is important content, it may be useful to include this in alternative text.
  • ...4 more annotations...
  • Decorative images do not present important content, are used for layout or non-informative purposes, and do not appear within a link. In almost all cases, spacer and decorative images should have null alt text (alt="").
  • In current practice on the web, many such images are given descriptive alternative text even though the images don't seem to provide useful content. Option C (alt="") would probably be most appropriate in this case because the image does not convey relevant or important content.
  • Alternative text should: presents the CONTENT and FUNCTION of the image. be succinct.
  • Decorative images still need an alt attribute, but it should be null (alt="").
mesbah095

Guest Post Online - 0 views

guestpostonline.com

accessibility general standards development usability webdesign design resources reading FUSION09

shared by mesbah095 on 03 Apr 14 - No Cached
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Sandra Earl

Web Content Accessibility and Mobile Web - 0 views

www.w3.org/mobile

accessibility mobile resources reading standards W3C

shared by Sandra Earl on 12 Oct 10 - Cached
  • Users of mobile devices and people with disabilities experience similar barriers when interacting with Web content. For example, mobile phone users will have a hard time if a Web site's navigation requires the use of a mouse because they typically only have an alphanumeric keypad. Similarly, desktop computer users with a motor disability will have a hard time using a Web site if they can't use a mouse.
Sandra Earl

97% of websites still inaccessible | 456 Berea Street - 0 views

www.456bereastreet.com/...of_websites_still_inaccessible

accessibility laws statistics general standards testing

shared by Sandra Earl on 12 Oct 10 - Cached
  • United Nations Global Audit of Web Accessibility, conducted by accessibility agency Nomensa on behalf of the United Nations, shows that 97 percent of websites fail to meet the most basic accessibility requirements.
  • A story on the BBC News website, ‘Most websites’ failing disabled, notes that 93 percent did not provide alternative text for all images, 73 percent relied on JavaScript for important functionality, and 98 percent of the sites did not use valid markup.
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 2 of 3 - Accessites.org - 0 views

accessites.org/...ning-for-dyslexics-part-2-of-3

accessibility cognitive learning disabilities dyslexia

shared by Sandra Earl on 12 Oct 10 - Cached
  • “Ensure that foreground and background color combinations provide sufficient contrast when viewed by someone having color deficits or when viewed on a black and white screen.”
  • Scoptic Sensitivity Syndrome
  • can make high contrast text difficult to read because the words seem to constantly move on the page.
  • ...7 more annotations...
  • anecdotal evidence suggests that, as soon as you reduce the colour contrast, the reading difficulties suffered by dyslexics are alleviated, to some degree, across the board.
  • Contrasts that comply with the thresholds can, and do, create very real problems for dyslexics.
  • t has been my experience that just about every issue within accessible web design is about balance. Skew any one factor too much in favour of a particular user group and you risk disadvantaging another group with opposing needs.
  • What I am suggesting is that, if a colour theme is chosen that conforms to, or exceeds, the W3C colour difference threshold, an alternative, low contrast style sheet should be provided as standard.
  • I then suggested that “disability” be defined as an “inability to pursue an activity because of a medically determinable physical or mental impairment.”
  • suggest that adhering to the Hewlett-Packard colour difference threshold would represent a more balanced approach to the issue of colour contrast. To that end,
  • I’ve developed an alternative color contrast analyser for people to try.
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