<?xml version="1.0"?>

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

      <elementtype name="InvoiceReferences">
         <model>
            <sequence>
               <element type="PurchaseOrderReference" occurs="?"/>
               <element type="Contract" occurs="?" name="ContractReference"/>
               <element type="Reference" occurs="?" name="AccountNumber"/>
               <element type="Reference" occurs="?" name="ProformaInvoiceNumber"/>
               <element type="Reference" occurs="?" name="ASNNumber"/>
               <element type="ASNOrderNumber" occurs="?"/>
               <element type="Reference" occurs="?" name="SupplierOrderNumber"/>
               <element type="Reference" occurs="?" name="PriceListNumber"/>
               <element type="Reference" occurs="?" name="PriceListVersionNumber"/>
               <element type="Reference" occurs="?" name="BuyersCatalogNumber"/>
               <element type="Reference" occurs="?" name="BillOfLadingNumber"/>
               <element type="Reference" occurs="?" name="AirWayBillNumber"/>
               <element type="Reference" occurs="?" name="LetterOfCreditNumber"/>
               <element type="AuthorizationReference" occurs="?"/>
               <element type="Reference" occurs="?" name="DeliveryNoteNumber"/>
               <element type="CostAllocation" occurs="?"/>
               <element type="ListOfRelatedInvoiceRef" occurs="?"/>
               <element type="ListOfReferenceCoded" occurs="?" name="OtherInvoiceReferences"/>
            </sequence>
         </model>
      </elementtype>

      <elementtype name="AuthorizationReference">
         <model>
            <sequence>
               <element type="Reference" name="AuthorizationNumber"/>
               <element type="Party" occurs="?" name="AuthorizationAssignedBy"/>
            </sequence>
         </model>
      </elementtype>

      <elementtype name="CostAllocation">
         <model>
            <sequence>
               <element type="Reference" name="CostAllocationNumber"/>
               <element type="string" occurs="?" name="WorkBreakdownStructure"/>
               <element type="string" occurs="?" name="FixedAsset"/>
            </sequence>
         </model>
      </elementtype>

   </schema>