> One possibility is that something in your XML document, such
> as an attribute at
> the root, would refer to the XML document containing the
> XML-Data definition of
> your grammar:
>
> <MyRoot Schema="MyRootSchema.xml">
> ...
>
> Another (uglier) possibility is that you use namespaces: the
> XML-Data namespace
> and the namespace your XML-Data data defines. I haven't
> looked enough at either
> the namespaces or XML-Data specs to be sure how this would
> work, but it seems
> the object structure might be something like:
>
> ...
>
Namespaces are intended to what you're asking for. I.e.:
<?xml:namespace ns="urn:mycompany:MyRootSchema"
prefix="myschema" src="http://something/MyRootSchema.xml"?>
I don't see why using a standardized solution is uglier than inventing your
own namespace tag. This does require you to namespace qualify your instance
information. I.e. the tags that come from the urn:mycompany:MyRootSchema
would be something like <myschema:xyz>.