Someone - seems like a million years ago, I know before schema was
underway - had a demo of a searchable graphical DTD viewer. It let you
start at the or in the middle, exploring different possibilities and
contexts without trying to pile the whole thing in one giant diagram.
I think it even included comments from the DTD, and really emphasized
readability. (I don't think it was part of a larger toolset.)
I just can't remember who or where, though I'm pretty sure it was in Java.
I wish that was more helpful, but I think it's at least possible to
create such a thing and make it appealing.
--
Simon St.Laurent
http://simonstl.com/
