> What mechanism's are available to make features of DTDs obsolete?
> Or how can one manage the progressive development of a DTD without
> invalidating existing data?
Once again, architectural forms to the rescue. I'm sending you
some material that speaks to your question directly.
-Steve
-- Steven R. Newcomb, President, TechnoTeacher, Inc. srn@techno.com http://www.techno.com ftp.techno.comvoice: +1 972 231 4098 (at ISOGEN: +1 214 953 0004 x137) fax +1 972 994 0087 (at ISOGEN: +1 214 953 3152)
3615 Tanner Lane Richardson, Texas 75082-2618 USA