<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="orders" type="ordersType"/>
  <xs:complexType name="ordersType">
    <xs:sequence>
      <xs:element name="OrderHeader" type="OrderHeaderType" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>
  <xs:complexType name="OrderHeaderType">
    <xs:sequence>
    <xs:element name="Orderno" type="xs:string" minOccurs="0"/>
    <xs:element name="SupplierId" type="xs:string" minOccurs="0"/>
    <xs:element name="CustomerId" type="xs:string" minOccurs="0"/>
<xs:element name="Date" type="xs:dateTime" minOccurs="0"/>
    <xs:element name="TotalPurch" type="Decimal4dp" minOccurs="0"/>
    <xs:element name="OrderLine" type="amountType" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>
  <xs:complexType name="amountType">
    <xs:sequence>
    <xs:element name="ItemCode" type="xs:string" minOccurs="0"/>
    <xs:element name="ItemDescription" type="xs:string" minOccurs="0"/>
    <xs:element name="Quantity" type="Decimal4dp" minOccurs="0"/>	
	<xs:element name="Price" type="Decimal4dp" minOccurs="0"/>
<xs:element name="Subtotal" type="Decimal4dp" minOccurs="0"/>
    <xs:element name="GST" type="Decimal4dp" minOccurs="0"/>
    <xs:element name="Total" type="Decimal4dp" minOccurs="0"/>
    </xs:sequence>
  </xs:complexType>
  <xs:simpleType name="Decimal2dp">
    <xs:restriction base="xs:decimal">
      <xs:fractionDigits value="2" />
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="Decimal4dp">
    <xs:restriction base="xs:decimal">
      <xs:fractionDigits value="4" />
    </xs:restriction>
  </xs:simpleType>
</xs:schema>