Here are the answers, to the questions you asked that I'm aware of: On Sat, Feb 13, 2010 at 12:50 PM, Olivier Rossel <olivier.ros...@gmail.com> wrote: > - does substitutionGroup still require the newer definition to be a > valid derivation of the original group?
I don't think, this has changed. Please refer, http://www.w3.org/TR/xmlschema11-1/#Element_Equivalence_Class which says: <quote> All such members must have type definitions which are either the same as the head's type definition or derived from it. </quote> > - is it possible to substitute a namespaced element for a > non-namespaced element? at the moment, in XSD 1.0, i could not mention > a non-namespaced element from inside a namespaced schema. I don't think, this was disallowed in XSD 1.0 as well. Please refer, http://www.w3.org/TR/xmlschema-1/#Declarations_Summary (section, "2.2.2.2 Element Substitution Group") which says: <quote> Any top-level element declaration can serve as the defining member, or head, for an element substitution group. Other top-level element declarations, _regardless of target namespace_, can be designated as members of the substitution group headed by this element. </quote> > - will xs:redefine still exist in XSD 1.1? xs:redefine still exists in XSD 1.1, but it's marked as a deprecated feature in XSD 1.1. XSD 1.1 defines a new schema component, xs:override (which is conceptually similar to xs:redefine), which allows unrestricted re-definition of schema components from overridden schemas (xs:redefine required the overriding schema, to have components, which should have derivation relationship to the overridden components). > will it be possible to > chain schemas, and (for example) to override a definition at a given > point of the chain, and then to redefine that definition at a later > point of that chain? I don't know for sure, a right answer to this. But my feeling is, that a chained specification of overridden components should be possible. I suggest, please ask "XML Schema" language questions on "W3C XML Schema" mailing list (ref, xmlschema-...@w3.org). -- Regards, Mukul Gandhi --------------------------------------------------------------------- To unsubscribe, e-mail: j-users-unsubscr...@xerces.apache.org For additional commands, e-mail: j-users-h...@xerces.apache.org