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Re: Extract A Subset of a W3C XML Schema?

• To: xml-dev@l...
• Subject: Re: Extract A Subset of a W3C XML Schema?
• From: james anderson <james.anderson@s...>
• Date: Thu, 31 Jul 2003 22:44:56 +0200
• Organization: nil
• References: <5FC285666E68F542A3F8A0E8693BC41A02F171@c...> <3F297419.E1AD547@b...>
• Reply-to: james.anderson@s...

Chiusano Joseph wrote:
> 
> ... UDEF attempts to solve (or at least help) this by creating
> "registered universal IDs" that provide a common frame of reference to
> establish semantics. For example, the UDEF ID of "g.9_8" means the
> following in the following contexts:
> 
> MIL-STD-2549: Part Product Identifier
> X12 EDI: Product/Service ID
> etc.
> 
> An XML representation would be:
> 
> <ProductPartIdentifier UID=?9_5.8?>123-456-789</ProductPartIdentifier>
> 
> The communicated benefit is that one can change tag names, but use of
> the UID signifies "what one is *really* talking about".
> 

why bother encoding the tag name. why not just do

<!DOCTYPE SOME_UDEF SYSTEM "data:,<!ELEMENT UDEF_9_5_8 (#PCDATA) >" [
  <!ATTLIST UDEF_9_5_8 ProductPartIdentifier #FIXED "TRUE">
 ]>
<UDEF_9_5_8>123-456-789</UDEF_9_5_8>

or

<!DOCTYPE SOME_UDEF SYSTEM "data:,<!ELEMENT UDEF_9_5_8 (#PCDATA) >" [
  <!ATTLIST UDEF_9_5_8 MIL-STD-2549 #FIXED "Part Product Identifier">
 ]>
<UDEF_9_5_8>123-456-789</UDEF_9_5_8>

or just

<UDEF_9_5_8>123-456-789</UDEF_9_5_8>


either you have got it right or you have not.

despite the truism, that the generic identifer is just a special attribute,
what is the advantage to making the universal depend on the ideosyncratic?

...

• References:
  • RE: Extract A Subset of a W3C XML Schema?
    • From: <Patrick.Garvey@t...>
  • Re: Extract A Subset of a W3C XML Schema?
    • From: "Chiusano Joseph" <chiusano_joseph@b...>

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