[dsdl-comment] Are these two NVDL documents equivalent? (nested mode versus independent modes)

Hi Folks,

Can you tell me whether or not these two versions are equivalent?

VERSION #1

This has a mode for "B" nested within the "A" mode:

 <?xml version="1.0"?>
 <rules startMode="A"
        xmlns="http://purl.oclc.org/dsdl/nvdl/ns/structure/1.0">
      <mode name="A">
          <namespace ns="http://www.A.org">
              <validate schema="A.xsd" >
                  <mode>
                      <namespace ns="http://www.B.org">
                          <validate schema="B.rng"/>
                      </namespace>
                  </mode>
              </validate>
          </namespace>
      </mode>
 </rules>

VERSION #2

This has two separate modes; the "A" mode uses mode "B":

 <?xml version="1.0"?>
 <rules startMode="A"
        xmlns="http://purl.oclc.org/dsdl/nvdl/ns/structure/1.0">
     <mode name="A">
         <namespace ns="http://www.A.org">
             <validate schema="A.xsd"
                       useMode="B" />
         </namespace>
     </mode>
     <mode name="B">
         <namespace ns="http://www.B.org">
             <validate schema="B.rng"/>
         </namespace>
     </mode>
 </rules>

/Roger

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