<?xml version="1.0"?>

   <schema uri="urn:x-commerceone:document:com:commerceone:XCBL30:XCBL30.sox$1.0">

      <elementtype name="InvoiceDetail">
         <model>
            <sequence>
               <element type="ListOfInvoiceItemDetail"/>
               <element type="ListOfPackageDetail" occurs="?"/>
            </sequence>
         </model>
      </elementtype>

   </schema>