- From: T. V. Raman <tvraman@us.ibm.com>
- Date: Tue, 16 Nov 1999 11:46:43 -0800 (PST)
- To: "Gregory J. Rosmaita" <unagi69@concentric.net>
- Cc: WAI Interest Group Emailing List <w3c-wai-ig@w3.org>, User Agent Guidelines Emailing List <w3c-wai-ua@w3.org>
In addition to what Greg says:
It's not entirely clear whether decolumnizing complex tables
in some ad-hock manner
as done by things like Lynx
is indeed the road to making table-layout pages accessible.
Though decolumnizing does alleviate the pain of hearing
gibberish--
a significant part of the page's functionality is lost
because things that are meant to be in close physical
proximity
get spread out far apart.
Also, most layout-oriented sites only manage to turn into a
different form of gibberish when decolumnized in this way
the issue gets especially bad with nested tables where the
decolumnizing gets even more ad-hock.
As an example, try
the various yahoo sites e.g. broadcast, loans etc.
>>>>> "Gregory" == Gregory J Rosmaita <unagi69@concentric.net> writes:
Gregory> aloha, kelly! whilst i agree that the abuse of
Gregory> tables for layout purposes has been mitigated
Gregory> by advances in user agent and adaptive
Gregory> technologies, i would caution against the quote
Gregory> the tools at my disposal allow me to
Gregory> decolumnize tables that are used for layout, so
Gregory> how big an accessibility issue is the use of
Gregory> tables for layout unquote train of thought...
Gregory> why?
Gregory> 1. expense: the tools you listed all represent
Gregory> a significant investment on the part of
Gregory> individuals who belong to a demographic
Gregory> category (those with less than 20/200 vision)
Gregory> which is plagued by an unemployment rate (in
Gregory> the U.S.) of at least seventy percent (the 70%
Gregory> figure i cited is derived from research
Gregory> performed by the American Foundation for the
Gregory> Blind)
Gregory> adding this extra expense to what is already
Gregory> (for most) the considerable investment that is
Gregory> required to purchase a computer upon which the
Gregory> software you listed will run efficiently and as
Gregory> intended, constitutes -- at least in my mind --
Gregory> an undue burden on the blind/VI user...
Gregory> 2. internationalization: it often takes 6
Gregory> months to well over a year for features that
Gregory> are built into the English version of adaptive
Gregory> software to be incorporated into non-English
Gregory> versions of software... therefore, just
Gregory> because you and i (who happen, by accident of
Gregory> birth, to reside in the U.S.A.) have access to
Gregory> the cutting edge in both adaptive and
Gregory> mainstream applications, does not mean that a
Gregory> critical mass of other blind users have access
Gregory> to the same advances... just a single (and
Gregory> well documented) case-in-point will suffice to
Gregory> illustrate this point... when Microsoft Active
Gregory> Accessibility (MSAA) was first released,
Gregory> applying it to a system which was running in
Gregory> non-U.S. English mode caused the dialogs and
Gregory> messages generated by the system to be output
Gregory> in U.S. English...
Gregory> 3. mode of internet access: there are still a
Gregory> lot of cybernauts who are using antiquated
Gregory> technology with which to access web-based
Gregory> content... there are myriad reasons for
Gregory> limitations upon an individuals ability (and
Gregory> willingness) to switch his or her mode of
Gregory> access, including:
Gregory> A. steep learning curvesf
Gregory> B. financial limitations
Gregory> B1) shell access, where available, is often far
Gregory> cheaper than a POP/PPP account, and is a more
Gregory> cost efficient means of obtaining web-based
Gregory> content when one is accessing the internet over
Gregory> a phone line for which the user is being
Gregory> charged per minute... and, it is an
Gregory> unfortunate fact of life that most of the users
Gregory> who still use shell accounts are saddled with
Gregory> an older version of Lynx or the W3 browser,
Gregory> which may impose severe limitations upon the
Gregory> content available to that user...
Gregory> B2) many users with disabilities -- in
Gregory> particular the blind -- may not have access to
Gregory> computer systems that are capable of running
Gregory> the type of software necessary to unravel
Gregory> tables that have been used for layout purposes
Gregory> -- a significant number of blind users are
Gregory> using discarded or cast-off equipment that is
Gregory> incapable of running much (if not all) of the
Gregory> software you cited
Gregory> 4) interoperability -- the use of tables for
Gregory> layout is just plain wrong if you want your
Gregory> pages to be as universally accessible as
Gregory> possible... tables are intended for the
Gregory> display of tabular data, not for imposing the
Gregory> desktop publishing paradigm upon the web, even
Gregory> though that is what they are most commonly used
Gregory> to do... therefore, it is imperative that
Gregory> authoring tools encourage the use of
Gregory> stylesheets to control layout, and that
Gregory> authoring tool developers and the users of
Gregory> authoring tools place pressure upon UA
Gregory> manufacturers to support stylesheets...
Gregory> i could go on ad nauseam, but i think that the
Gregory> reasons enumerated above suffice to illustrate
Gregory> that, despite recent advances in technology,
Gregory> the use of tables for layout is definitely
Gregory> still a barrier to accessibility...
Gregory> gregory.
Gregory> At 10:11 AM 11/16/99 -0800, Kelly Ford wrote:
>> There has been a great deal of discussion about the use of tables and the
>> problems they cause for people who are blind when used for design purposes.
> I'm speaking strictly here of tables used for design, not to contain
>tabular data.
>
>I'm wondering how much of a problem such pages pose for folks who are
>blind? The browsing combinations I use all decolumnize these types of
>pages in some fashion. These include Lynx, Home Page Reader, Internet
>Explorer with either JFW 3.31 or Window-Eyes 3.1.
>
>Kelly
Gregory> --------------------------------------------------------
Gregory> He that lives on Hope, dies farting -- Benjamin
Gregory> Franklin, Poor Richard's Almanack, 1763
Gregory> --------------------------------------------------------
Gregory> Gregory J. Rosmaita <unagi69@concentric.net>
Gregory> WebMaster and Minister of Propaganda, VICUG NYC
Gregory> <http://www.hicom.net/~oedipus/vicug/index.html>
Gregory> --------------------------------------------------------
--
Best Regards,
--raman
------------------------------------------------------------
IBM Research: Human Language Technologies
Phone: 1 (408) 927 2608
Email: tvraman@us.ibm.com
WWW: http://cs.cornell.edu/home/raman
PGP: http://cs.cornell.edu/home/raman/raman.asc
Snail: IBM Almaden Research Center,
650 Harry Road
San Jose 95120
Received on Tuesday, 16 November 1999 14:42:03 UTC