[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: Common XML (was Re: Document Feature Requirements)

  • From: David Megginson <david@m...>
  • To: xml-dev@x...
  • Date: 12 Apr 2000 17:35:10 -0400

Re: Common XML (was Re: Document Feature Requirements)
Sean McGrath <sean@d...> writes:

> [David Megginson]

> >You might be a little overly optimistic in assuming that any markup
> >has good survival characteristics in the general case -- it's the
> >model that matters, not the markup.
> I have read the above 5 times now and I'm afraid it has gone
> over my head. Can you explain what you mean by this?

XML is an interchange format -- that means that it's used to exchange
information that follows some other model.  When the XML passes
through a non-XML system and comes back out as XML on the other end,
only those things that are represented in the model are likely to come 
out again.

This is not so noticable with documents (I know that a lot of people
hate the document/data distinction, but live with guys), because a lot
of them follow a model (as expressed in the Infoset and implemented in
DOM, XPath, etc.) that is very close to the XML representation itself;
this is *very* noticable with data, which tends to pass through
application-specific RDF tuples, Perl objects, SQL tables, C
structures, etc., and come out on the other end completely changed,
especially if there is more than one possible XML representation for
the same logical information.

All the best,


David Megginson                 david@m...

This is xml-dev, the mailing list for XML developers.
To unsubscribe, mailto:majordomo@x...&BODY=unsubscribe%20xml-dev
List archives are available at http://xml.org/archives/xml-dev/


Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
First Name
Last Name
Subscribe in XML format
RSS 2.0
Atom 0.3

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.

Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.