Message-Id: <email@example.com> Date: Tue, 21 May 1996 16:59:35 -0500 To: "Harold A. Driscoll" <firstname.lastname@example.org> From: email@example.com (Murray Altheim) Subject: Re: HTML 3.2: SGML Document Access (SDA) Cc: firstname.lastname@example.org, email@example.com "Harold A. Driscoll" <firstname.lastname@example.org> writes: >I note that the HTML 3.2 DTD (Draft: Tuesday 15-May-96) does not include the >SGML Document Access (SDA) Parameter Entities  which were provided in the >HTML 2.0 DTD [RFC 1866]. Was this because: > > (1) it is a draft document, and they have not been completed; or > (2) SDA proved to be the proverbial "good idea whose time never > came" with a deliberate decision (quietly) made to drop it. > >Most certainly the reason is not the remaining possibility, that > (3) the needs of disabled/handicapped folks were not of concern. Support for SDA attributes in HTML 2.0 was provided by adding attributes to HTML elements that provided a method of transforming specific HTML features into a close equivalent in the ICADD DTD. While the intent was laudable, this essentially muddies up one SGML application by hardwiring in a specific version of another SGML application's productions. I can't speak for Dave, but I'm sure that the omission of SDA attributes from HTML 3.2 was not because support for the "disabled/handicapped" was not important, rather that there are better methods of providing this support. Transformation from one SGML application to another can be provided by transformation DTDs or through use of an SGML Link Process Definition (LPD). There is a preliminary version of an HTML to ICADD LPD written as part of a working draft of the modular HTML DTD at http://www.stonehand.com/murray/modular.html specifically: http://www.stonehand.com/dtd/html20m/sda.lpd [...] >On the other hand, if SDA is effective (or does show promise) than I'd >suggest its retention should be an important aspect of HTML 3.2. If this is of real concern to people with time to invest in testing and proving the efficacy of the design, then I would suggest working up a compatible HTML 3.2 to ICADD 1.1 LPD, and providing supportive documentation for this feature. If any members of ICADD wish to participate in this effort, please get in touch with me and perhaps we can create up some type of working draft for submission to the authors of the W3C draft. Murray ``````````````````````````````````````````````````````````````````````````````` Murray Altheim, Program Manager Spyglass, Inc., Cambridge, Massachusetts email: <mailto:email@example.com> http: <http://www.stonehand.com/murray/murray.html> "Give a monkey the tools and he'll eventually build a typewriter."