<?xml version="1.0"?>

   <schema uri="urn:x-commerceone:document:com:commerceone:XCBL35:XCBL35.sox$1.0">

      <elementtype name="FormulaAttribute">
         <model>
            <choice>
               <element type="AttributeName"/>
               <element type="string" name="Value" occurs="?"/>
            </choice>
         </model>
      </elementtype>

   </schema>