What does tcXML mean?

From: Edwin van Gruijthuijsen <egruijthuijsen_at_CUBIC-INTERNATIONAL.COM>
Date: Fri, 05 Jul 2002 06:42:16 -0600

Does anybody know what tcXML stands for in constructs like these?

<message name="echo">
  <part name="tcXML" type="xsd:string" />

And JAXRPC ea2 does not seem to generate it, but generates

<message name="echo">
  <part name="String_1" type="xsd:string" />

instead. Can I tell JAXRPC to generate tcXML instead of String_1?