<br><font size=2 face="sans-serif">I'm sending this message on behalf of
my colleague John Arwe, co-chair of the W3C SML WG.</font>
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<br><font size=2 face="sans-serif">The W3C Service Modeling Language working
group expects to publish a second (and hopefully final!) Last Call Working
Draft "real soon now". Some reviewers from the XQuery working
group mentioned that the topic of referential integrity for sets of linked
XML documents might be of sufficient interest to these lists that it would
be worth soliciting a review. Besides, they're great beach reading
;-)</font>
<p><font size=2 face="sans-serif">Some of the earlier articles on SML attributed
to it a somewhat different scope [1], either wider or narrower depending
upon your point of view. With that in mind, here is an outline of
the topics actually in scope for SML as currently defined:</font>
<p><font size=2 face="sans-serif">SML - definition of concepts for a model
(a set of XML documents)</font>
<p><font size=2 face="sans-serif">- Model validity ~ instances valid against
XML Schema documents and any associated Schematron documents</font>
<p><font size=2 face="sans-serif">- XML instance document extensions</font>
<p><font size=2 face="sans-serif">- - Extensible syntax for recognizing
SML references (conceptually, links) between document elements ... element
A in document 1 links to element B in document 2, etc</font>
<p><font size=2 face="sans-serif">- XML Schema extensions</font>
<p><font size=2 face="sans-serif">- - Constraining SML references based
on various criteria, e.g. target element, target element's type, are cycles
allowed</font>
<p><font size=2 face="sans-serif">- - Cross-document identity constraints
(key, unique, keyref)</font>
<p><font size=2 face="sans-serif">- - Association of Schematron rules with
global elements and global complex types</font>
<p><font size=2 face="sans-serif">SML-IF - interchange format, adds concrete
syntax for exchanging models in cases where SML defines concepts but not
syntax</font>
<p><font size=2 face="sans-serif">- Association of XML Schema and Schematron
documents with other model documents</font>
<p><font size=2 face="sans-serif">- Association of 0..n URI aliases with
each model document</font>
<p>
<p><font size=2 face="sans-serif">Review drafts and instructions for providing
comments are on the working group's page [2]. Until the new LC drafts
are available (likely mid-July), we recommend using the editor's copies
also available at [2]. [2] also has the links to the working group's
Bugzilla page, so you can see which text is still being revised (keyword:
editorial indicates conceptual agreement as indicated in the bug, just
waiting for final drafting).</font>
<p><font size=2 face="sans-serif">The potentially substantive issues for
which we do not have final consensus as of this email (but expect to _very_
soon) are:</font>
<p><font size=2 face="sans-serif">- base URI source </font><a href="http://www.w3.org/Bugs/Public/show_bug.cgi?id=5542"><font size=2 face="sans-serif">http://www.w3.org/Bugs/Public/show_bug.cgi?id=5542</font></a>
<p><font size=2 face="sans-serif">- whether or not to support barenames
in SML references </font><a href="http://www.w3.org/Bugs/Public/show_bug.cgi?id=5543"><font size=2 face="sans-serif">http://www.w3.org/Bugs/Public/show_bug.cgi?id=5543</font></a>
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<p><font size=2 face="sans-serif"><br>
Best Regards, John Arwe (W3C SML wg co-chair)<br>
</font>
<br><font size=2 face="sans-serif">[1] </font><a href="http://lists.xml.org/archives/xml-dailynews/200702/msg00004.html"><font size=2 face="sans-serif">http://lists.xml.org/archives/xml-dailynews/200702/msg00004.html</font></a>
<br><font size=2 face="sans-serif">[2] </font><a href=http://www.w3.org/XML/SML/><font size=2 face="sans-serif">http://www.w3.org/XML/SML/</font></a>
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