Yes, I have considered xs:choice, however, I don't see how I would apply 
that. In this case, I always want all of the elements in the order listed, 
but, I only want to allow content (specific content) in one of those elements.

Thanks,
David

"Han" wrote:

> Have you considered xs:choice instead of xs:sequence?
> -- 
> Pohwan Han. Seoul. Have a nice day.
> "David W. Rogers" <DavidWRogers@d...> wrote in message 
> news:423DF2B1-74BC-4F26-AFE2-99592532806A@m......
> >I am creating an evaluation form, to capture a question of the format:
> >
> > 1) I was able to hear everything the speaker said:
> >
> > Strongly Disagree       Neutral            Strongly Agree
> >          [   ]                  [   ]                  [   ]
> >   [   ]                  [   ]
> >
> > I am creating a schema to validate an XML document that has:
> >
> > <RankedQuery ID="1" Text="I was able to hear everything the speaker 
> > said:">
> > <StronglyDisagree></StronglyDisagree>
> > <SortofDisagree></SortofDisagree>
> > <Neutral>x</Neutral>
> > <SortofAgree></SortofAgree>
> > <StronglyAgree></StronglyAgree>
> > </RankedQuery>
> >
> >
> > I only want one of these to be able to have an 'x' in it at a time (like a
> > radio button choice). My schema does not enforce that:
> >
> > <xs:element name="RankedQuery">
> > <xs:complexType>
> >  <xs:sequence>
> >    <xs:element ref="StronglyDisagree"/>
> >    <xs:element ref="SortofDisagree"/>
> >    <xs:element ref="Neutral"/>
> >    <xs:element ref="SortofAgree"/>
> >    <xs:element ref="StronglyAgree"/>
> >   </xs:sequence>
> >  <xs:attribute name="ID" use="required" type="xs:integer"/>
> >  <xs:attribute name="Text" use="required"/>
> > </xs:complexType>
> > </xs:element>
> >
> > <xs:element name="Neutral" type="xType"/>
> > <xs:element name="SortofAgree" type="xType"/>
> > <xs:element name="SortofDisagree" type="xType"/>
> > <xs:element name="StronglyAgree" type="xType"/>
> > <xs:element name="StronglyDisagree" type="xType"/>
> > <xs:simpleType name="xType">
> > <xs:restriction base="xs:string">
> >  <xs:enumeration value=""/>
> >  <xs:enumeration value="x"/>
> >  <xs:enumeration value="X"/>
> > </xs:restriction>
> > </xs:simpleType>
> >
> >
> > Can someone redirect me in a direction that will enforce that one and only
> > one of the xtype elements can have an 'x' in it?
> >
> > Thanks,
> > David 
> 
>