<!ELEMENT job       (schema, instance, display, optimize)>

<!ELEMENT schemа    (title, text, parameter*)>
<!ATTLIST schema id ID #REQUIRED>

<!ELEMENT title     (#PCDATA)>
<!ELEMENT text      (#PCDATA)*>

<!ELEMENT parameter EMPTY>
<!ATTLIST parameter name CDATA #REQUIRED>
<!ATTLIST parameter value CDATA #REQUIRED>

<!ELEMENT instance (title,object*)>
<!ELEMENT object (name, value, data*)>