<!ELEMENT CEWS_REQUEST ( MESSAGE_HEADER, MESSAGE_PAYLOAD ) >

<!ELEMENT MESSAGE_HEADER ( REQUEST_BY, REQUEST_ID, REQUEST_TYPE, REQUEST_DATE ) >

<!ELEMENT MESSAGE_PAYLOAD ( PARAMETERS ) >

<!ELEMENT PARAMETER EMPTY >
<!ATTLIST PARAMETER NAME NMTOKEN #REQUIRED >
<!ATTLIST PARAMETER VALUE NMTOKEN #REQUIRED >

<!ELEMENT PARAMETERS ( PARAMETER+ ) >

<!ELEMENT REQUEST_BY ( #PCDATA ) >

<!ELEMENT REQUEST_DATE ( #PCDATA ) >

<!ELEMENT REQUEST_ID ( #PCDATA ) >

<!ELEMENT REQUEST_TYPE ( #PCDATA ) >