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Schemas: "Path Models" and "Axis Models"

From: Rick Jelliffe <ricko@gate.sinica.edu.tw>
Date: Sat, 31 Jul 1999 16:12:44 +0800
Message-ID: <001a01bedb2c$80312160$8d066d8c@sinica.edu.tw>
To: "Simon St.Laurent" <simonstl@simonstl.com>, "MURATA Makoto" <murata@apsdc.ksp.fujixerox.co.jp>, <francis@redrice.com>
Cc: "James Clark" <jjc@jclark.com>, <www-xml-schema-comments@w3.org>
You may be interested in a little note  "Axis Models & Path Models:
Extending DTDs with XPaths" at

It looks at how XPaths could be applied to structural schemas. I identify
two possibilities:
* axis models are regular expression models that validate on different XPath
axes (an XML content model is an axis model where the axis is "children");
* path models are regular expression models in which each term is an XPath
(an XML content model is a path model where each term is a child).

Also, the note on "Weak Validation" is also updated.

Rick Jelliffe
Received on Saturday, 31 July 1999 04:16:09 UTC

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