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- From: "Bullard, Claude L (Len)" <firstname.lastname@example.org>
- To: Sandra Carney <email@example.com>, firstname.lastname@example.org
- Date: Thu, 17 May 2001 12:55:12 -0500
That's one use. Well-formed is what the
message or document should be in transport.
With a correct-by-construction application,
you can build that without a DTD. Spitting
well-formed XML from a database is trivial
because the database schema, GUI, and business
rules did all the heavy lifting. On the other
hand, a DTD or schema has multiple use cases:
o Rigorous form of contract between
o Means to validate a message on send
or on receipt
o Means to create or specify an
authoring environment. In the first
case, editors take a DTD and create the
GUI for editing. In the second case,
the DTD is used to get the rules for
forms or other GUI objects.
This is all well-known stuff. Your
developers aren't wrong per se, but
they aren't being very precise.
It's just another tool in the gig bag.
Ekam sat.h, Vipraah bahudhaa vadanti.
Daamyata. Datta. Dayadhvam.h
From: Sandra Carney [mailto:email@example.com]
Sent: Thursday, May 17, 2001 11:43 AM
We have a question about the necessity of DTD. There are folks
among our developers who postulate that so long as the document
is well-formed, we don't need DTD's. So far, so true. However,
might this pose a quality problem later on especially if you want
to limit what are considered legitimate tags in the document?
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- RE: DTD's
- From: Murali Mani <mani@CS.UCLA.EDU>