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Your list is one of the reasons I consider attempting to standardize on a globally accepted binary XML format as a fool's errand. Various applications have different requirements especially when it comes to size vs. speed and I've yet to see a binary XML proposal that satisfies both camps let alone the other interesting requirements that you site. I can't imagine that trying to please all those requirements would spawn a creation not unlike W3C XML Schema which attempted to satisfy too many conflicting requirements and ended up a satisfying them in an inadequate manner,
-----Original Message-----
From: Robin Berjon [mailto:robin.berjon@expway.fr]
Sent: Wed 2/5/2003 6:28 AM
To: Rich Salz
Cc: james.fuller@o-idev.com; code_martial@softhome.net; xml-dev@lists.xml.org
Subject: Re: [xml-dev] Xqueeze: Compact XML Alternative
Rich Salz wrote:
> How much of the problem "XML needs to be compressed" is solved by just
> using GZIP transfer encoding over HTTP?
As Alaric said, it solves the size problem, but that's just about it. Depending
on the platform it may worsen the speed problem. Here are your typical
requirements for a binary infosets format (they are met by very few of the
available options):
- size
- speed (parsing time)
- streaming (the ability to send the document in independent, yet well-formed as
per the binary format, fragments. Those are possibly sent in an order that
does not match that of the document. This ties in strongly with XML Fragments
and XML Packaging)
- random access (being able to skip straight to the portion of the document you
want, without having to parse it all)
In addition to that you might want things like backward/forward compatibility
accross schema changes.
--
Robin Berjon <robin.berjon@expway.fr>
Research Engineer, Expway http://expway.fr/
7FC0 6F5F D864 EFB8 08CE 8E74 58E6 D5DB 4889 2488
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