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W3C XML Schema: DOs and DON'Ts
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"W3C XML Schema: DOs and DON'Ts
Written by Kohsuke KAWAGUCHI
Translation to Japanese by R.Nanba
$Revision: 1.9 $
Introduction
It's easy to learn and use W3C XML Schemas once you know how to avoid the pitfalls.
Here are some DOs. You should at least learn the following things.
DO use element declarations, attribute groups, model groups and
simple types.
DO use XML namespaces as much as possible. Learn the correct way to use them.
Here are some DON'Ts.
DO NOT try to be a master of XML Schema. It would take months.
DO NOT
use complex types ( why? ),
attribute declarations ( why? ),
and notations ( why? ).
DO NOT use local declarations ( why? ).
DO NOT use substitution groups ( why? ).
DO NOT use schema without the targetNamespace attribute
(AKA chameleon schema.) ( why? )
The fact is, you don't lose anything by following these DON'Ts, as the rest of this paper
demonstrates.
Too long to remember? Then here is the one line version.
Consider W3C XML Schema as DTD + datatype + namespace
Motivation for this document
Several similar documents are already available on the web.
But I discovered that those documents are written by some special people;
they are brilliant people who always drive things to the limit.
They simply can't stop inventing cool tricks that even the working group member
can't imagine.
XML Schema is their new favorite toy.
There has to be a different document. A document for those who use W3C XML Schema
for business --- for those who are at a loss how to use it.
So the goal of this document is to provide a set of solid guidelines
about what you should do and what you shouldn't do.
I always welcome comments. If you have one, please let me know.
Why you "
....
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