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Re: DTD vs Schema

• From: "Frank Boumphrey" <bckman@i...>
• To: "AMER, Nidal" <Nidal.AMER@h...>, "xml mailing list" <xml-dev@i...>
• Date: Thu, 10 Sep 1998 11:29:24 -0400

>2. Is there anywhere a clear documentation on DTD without diving
>into the whole SGML DTD stuff? I am lost between HTML4 DTD, SGML DTD and
>XML DTD.

I give a very '101' tutorial on XML DTD's at my web site at
Http://www.hypermedic.com/style/index.htm
Follow the XML link and open the text file.


>1. What is the right way to describe XML message syntax: DTD or
>schema. I started by looking at Microsoft site. The publish
>documentation on schema but nothing about DTD. They also say schema is a
>better way to describe XML as it is XML.


At present Schemas are no more than Notes. The DT is the only official way
to describe your XML document.

regards,

Frank

Frank Boumphrey

XML and style sheet info at Http://www.hypermedic.com/style/index.htm
Author: - Professional Style Sheets for HTML and XML http://www.wrox.com
-----Original Message-----
From: AMER, Nidal <Nidal.AMER@h...>
To: <xml-dev@i...>
Date: Thursday, September 10, 1998 7:36 AM
Subject: DTD vs Schema


>Dear all,
>
>Some beginner's questions, just don't laugh:
>1. What is the right way to describe XML message syntax: DTD or
>schema. I started by looking at Microsoft site. The publish
>documentation on schema but nothing about DTD. They also say schema is a
>better way to describe XML as it is XML.
>2. Is there anywhere a clear documentation on DTD without diving
>into the whole SGML DTD stuff? I am lost between HTML4 DTD, SGML DTD and
>XML DTD.
>3. The database I am working on is highly hierarchical. MS schema
>documentation describes uses SUPERTYPE to declare inheritance. Is there
>any equivalent DTD declaration?
>
>Could anybody give me a hand with this?
>Many thanks in advance.
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Nidal AMER
>R & D Deputy Manager
>HDMP ( Health Data Management Partners)
>A SmithKline-Beecham Company
>6 Rue de Genève,
>1140 Brussels, Belgium
>Tel: + 32 (2) 724 00 93
>Fax: + 32 (2) 726 91 59
>E-mail: nidal.amer@h... <mailto:nidal.amer@h...>
>Visit our web site: http://www.hdmp.com <http://www.hdmp.com>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
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>



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