1. Trenton Moss

    Director at Webcredible

    06 September 2004 18:10pm

    Trenton Moss

    In 1995 a new era of accessibility for disabled people began. The DDA (Disability Discrimination Act) was passed, stating that:“It’s unlawful for a service provider to discriminate against a disabled person by refusing to provide any service which it provides to members of the public.”

    A website is regarded as a service and the RNIB (Royal National Institute for the Blind) and DRC (Disability Rights Commission) have been quick to apply pressure on to organisations to push this law into practice. Indeed, the DRC has now published a report on its formal investigation into 1000 websites.

    So, how do disabled people access the Internet?

    1. Blind users

    Internet users who have no sight at all may utilize a screen reader, which reads the content of the web page, or rather the HTML code of the page, back to them. These machines sift through the HTML code and the technology deciphers what needs to be read aloud and what should be ignored. You can download the IBM Homepage Reader for a free 30-day trial. Once you’ve downloaded it, go to your website, turn your monitor off, and try to navigate your website.

    2. Partial/poor sight

    To take full advantage of the Internet, users with partial or poor sight may need to be able to enlarge the text on web pages. Check if your website allows them to achieve this on Internet Explorer by going to ‘View > Text size > Largest’.If your site is accessible to this group of users then the size of the text throughout the page will increase. Text embedded within graphics isn’t resizable and may cause difficulties for this group of web users.Users with poor vision may also use a screen magnifier to enlarge the text size. Again, text embedded within graphics may cause difficulties as it can appear blurry and pixelated when magnified.

    3. Colour blindness

    It’s estimated that one in 12 men and one in 200 women have some form of colour blindness (Source: IEE). You can check how Internet users with different strains of colour blindness are viewing your website with Vischeck.

    4. Deaf users

    Deaf web users are often able to access the Internet in much the same way as able-bodied people, with one key exception - audio content. If it’s a key function of your website for people to be able to hear a message, then be sure to provide subtitles or a written transcript.

    An additional disadvantage deaf users may face is that British Sign Language is actually their first language. As such, they may be unable to understand some advanced English words and sentences.

    5. Keyboard/voice only users

    Some of your site users don’t have access to a mouse when browsing the Internet. Try putting yourself in their position by navigating your website using only tab, shift-tab, and the return key.

    6. Other users

    Other people who may access your website that have disadvantages include:

    1. Some epileptic users who must always be careful to avoid seeing flickering between 2 and 55 Hz
    2. Web users from outside your industry who may not understand industry jargon or acronyms
    3. Web users whose first language is not English and who may not be able to comprehend complicated language

    To really put yourself in the position of one of these web users try out the DRC’s inaccessible website demonstration.

    Trenton Moss

    Webcredible

  2. Francois Jordaan

    Director of User Experience at Isotoma

    08 September 2004 17:10pm

    Francois Jordaan

    A helpful overview, thanks. I just had a few additional comments:

    Internet users who have no sight at all may utilize a screen reader, which reads the content of the web page, or rather the HTML code of the page, back to them. These machines sift through the HTML code and the technology deciphers what needs to be read aloud and what should be ignored. You can download the IBM Homepage Reader for a free 30-day trial. Once you’ve downloaded it, go to your website, turn your monitor off, and try to navigate your website.

    There are several other screen readers, including Jaws (the market leader) and Windows-Eyes. Unfortunately all these programmes are expensive and have only severely-limited demo versions, making testing quite difficult for well-meaning designers!

    A cheaper way to gain an understanding of what users of screen readers hear is to use a text browser like Lynx, or use Opera in text browser emulation mode. This "linearises" the content of the page as a screen reader would. (Opera has many features useful for testing accessibility, detailed on this RNIB page.) You can also get a quick text-browser view of any website using Lynxview.

    To take full advantage of the Internet, users with partial or poor sight may need to be able to enlarge the text on web pages. Check if your website allows them to achieve this on Internet Explorer by going to ‘View > Text size > Largest’.If your site is accessible to this group of users then the size of the text throughout the page will increase. Text embedded within graphics isn’t resizable and may cause difficulties for this group of web users.Users with poor vision may also use a screen magnifier to enlarge the text size. Again, text embedded within graphics may cause difficulties as it can appear blurry and pixelated when magnified.

    As far as I’m aware the pixellation of magnified graphical text is not a significant impairment to its legibility. If you have heard otherwise, let me know.

    I should also point out that many browsers are much less limited than Internet Explorer when it comes to magnifying content. Opera zooms both images and text. Gecko-based browsers (Firefox, Netscape 6+, Mozilla) can resize text regardless of how the page was coded. Users who are aware they have difficulty reading typical web pages are likely to use screen magnification software or one of these browsers.

    That said, there is a large grey area of users with only slightly imperfect vision who might often want to increase text size. (I do so myself, when reading a lot of text on screen and want to lean back.) They would not consider themselves disabled, and most are unlikely to switch from the default browser, Internet Explorer. For that reason, making sure fonts are resizable in IE is still very important.

    Finally, I would also advise anyone interested in testing the accessibility of websites to have a look at the Accessify favelets (also known as bookmarklets) which are browser add-ons that help in testing accessibility.

    Screen readers and screen magnification can also be viewed in action in these videos produced by the University of Wisconsin.

  3. Paul Gailey

    Marketing Consultant at Independent

    21 July 2005 14:50pm

    Avatar-blank-50x50

    A client is interested in adding access keys to their
    website particularly given the relevance to their
    audience. I'm looking for best practice examples of
    their useage.

    Other than the Nomensa article here, is
    their other examples or commonly accepted norms of
    standards for access keys, other than sitemap (3),
    contact (9), homepage (1) and accessibilty (0)

    I found it bizarre that the cabinet office publish
    information about suggested best practice for access key settings:

    scroll down mid way the page of:

    http://www.cabinetoffice.gov.uk/e-government/resourc
    es/handbook/html/2-4.asp

    and then the very same mandarins flagrantly violate
    their own standards. Click alt+0 from the above page
    to reach:
    http://www.cabinetoffice.gov.uk/e-government/viewing.
    asp 

    which shows a different set of access key settings!

    It also seems a shame that london2012.org, otherwise
    impecable website, whose winning bid was so
    centered on inclusiveness, paralympics and
    minorities, manages to offer a page not found 404
    error, albeit with a pretty logo message, because of
    html coding oversight.

    Finally, is it possible to track the useage of access
    keys in any web analytics way?

  4. Francois Jordaan

    Director of User Experience at Isotoma

    21 July 2005 15:05pm

    Francois Jordaan

    Access keys are a controversial subject, and many accessibility experts advise against using them at all. The reasons are best explained in this article (also see the related articles):
    http://www.wats.ca/articles/accesskeys/19

    On websites Wheel has developed since 2002, we have opted to use a small set of access keys, chosen to minimise conflict with screen reader keyboard shortcuts, and based on the UK Government e-envoy guidelines you mention. You can see examples on any of the following sites:

    http://www.wheel.co.uk/
    http://www.allieddomecq.com/
    http://www.unilever.com/
    http://www.marksandspencer.com/
    http://www.marksandspencer.com/thecompany/
    http://www.hsamuel.co.uk/
    http://www.ernestjones.co.uk/
    http://www.123healthybalance.com/

    (Note also that they become visible when using the keyboard to navigate.)

    We originally decided to support the e-envoy standards to speed the adoption of a standard for access keys in the UK. It is worth noting, however, that the post of e-envoy has ended and is not being renewed, leaving the future of this government initiative (and the continuing validity of its recommendations) in doubt:

    http://news.bbc.co.uk/1/hi/technology/3096104.stm

  5. Paul Gailey

    Marketing Consultant at Independent

    21 July 2005 16:02pm

    Avatar-blank-50x50

    Thanks for your insightful info.

    It seems that theory and practice of standards in this area is a murky one particularly given the conflict of other applications vying for the same keys.

    Can you explain your rationale for the differing approach between M&S and Allied Domecq? The former uses mostly numbers and the latter mostly characters for the same category of pages. is it much the case that users of the keys will initially consult the alt+0 page to familiarise themselves with the navigation. And given the scale of your client websites can you offer any insight into user testing of these sites in that respect?

    Thinking about this much reminds me of frequent instances of poor design: The peculiar quirk that the number pad on a keyboard/calculator, starting at 1 on the left bottom of the pad layout, is routinely re-arranged for a cashpoint, where the pad starts with a 1 at the top left. It makes for hell if you are used to intuitively typing your PIN numbers on websites and then try to get cash out of the bank. It's like we intuively know that the top left of a screen will get us the homepage, then some designer tries to break convention with a radical new design. It must be frustrating for disabled people to grapple with poor design on a daily basis.

    Re accessbility keys I'm still racking my head if their useage can be ascertained other than looking at the logs for page views of the alt+0 page alone. Maybe the webanalytics can identify through other means if the browser agent is a screen reader or assistive technology.

  6. Francois Jordaan

    Director of User Experience at Isotoma

    21 July 2005 16:24pm

    Francois Jordaan

    Since best practice on access keys is unclear, our approach has evolved over time (and sometimes also reflect the preferences of different designers.) Our most recent implementation is probably M&S Corporate:
    http://www2.marksandspencer.com/help/policies/corp_statement.shtml
    which limits the number of access keys, and mostly sticks to numerals.

    Yes, the purpose of the accessibility statement is partially to acquaint users with the access keys used, so we're hoping alt-0 becomes more familiar for this purpose. Note that we also use a small "skiplinks menu" at the start of all pages, so regardless of whether access keys are used, this enables people using the keyboard to navigate to quickly reach different areas of the page.

    But we are in the process of re-evaluating our position on access keys. So I don't want to imply that the examples I provide are foolproof. In tests with screen readers users, you rarely get people using access keys.

    If you want to find lots more examples on the web, you can simply google for accessibility statements --
    http://www.google.com/search?q=%22accessibility+statement%22
    -- or for "access keys".

  7. Paul Gailey

    Marketing Consultant at Independent

    21 July 2005 16:39pm

    Avatar-blank-50x50

    It would be interesting to hear from other industry agencies, particularly those publishing multilingual websites. This is where I favour the number route rather than the characters. 

    For example:
    118 is becoming pan european wide accepted and i believe there are efforts to unify emergency  numbers (away from 999)

    It seems the UK leads on disability compliance for web publishing and while there maybe limited scope for access keys versus assitive technologies it would be encouraging for leading consumer websites and the trade to converge in their approach to further promote the web as an inclusive medium for all users.

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