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Re: XML Schema considered harmful?

• To: "Thomas B. Passin" <tpassin@c...>
• Subject: Re: XML Schema considered harmful?
• From: Murali Mani <mani@C...>
• Date: Wed, 5 Jun 2002 08:50:49 -0700 (PDT)
• Cc: XMLDEV <xml-dev@l...>
• In-reply-to: <004001c20c99$9dfa4770$f6193044@tbp>

I wanted to make one more comment -- regarding the length of schemas --

The concepts which XML schemas represent do not need XML syntax, it is
sometimes difficult to understand what we are trying to do when we use
this syntax.

I had always wished some conceptual way of representing schemas in non-XML
syntax -- abstracting out the necessary features.

I am very glad that RELAX NG recently came up with a non XML syntax also..
I have not checked it out, but I am confident it will be useful.. I am
sure that XML syntax might be useful in several scenarios (though I do not
know when, and I do not think i need them at this point of time).

Also, Thomas, if you can show me how you use substitution groups, that
would help.. we can take it offline..

thanks and regards - murali.

On Wed, 5 Jun 2002, Thomas B. Passin wrote:

> I use XML Schema at work on a particular project because it has basically
> been decreed higher up.  The schemas are complex because they are long, but
> don't use a lot of complex capabilties of XMl schema.  I have tried to keep
> them as simple as possible (because that's all I can manage to handle) and
> the most advanced feature we use is element substitution groups.  These
> schemas import other schemas that use different target namespaces.

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