DTD for the source mappings XML structure


<!ELEMENT OntologyMappings (connections?, OntologyMapping+)>
<!ELEMENT connections (connection*)>
<!ELEMENT connection (name, server, type, access+, database, port, username, password)>
<!ELEMENT name (#PCDATA)>
<!ELEMENT server (#PCDATA)>
<!ELEMENT type (#PCDATA)>
<!ELEMENT access (#PCDATA)>
<!ELEMENT database (#PCDATA)>
<!ELEMENT port (#PCDATA)>
<!ELEMENT username (#PCDATA)>
<!ELEMENT password (#PCDATA)>
<!ELEMENT OntologyMapping (Ontology,RefOntology?,Mapping)>
<!ELEMENT SQLOperator (#PCDATA)>
<!ELEMENT Ontology (#PCDATA)>
<!ELEMENT RefOntology (#PCDATA)>
<!ELEMENT Mapping (((Mapping,SQLOperator)*,Mapping)|(Tablename,Projections,Selections?))>
<!ELEMENT Tablename (#PCDATA)>
<!ELEMENT Projections (Attribute+)>
<!ELEMENT Attribute (#PCDATA)>
<!ELEMENT Selections (Selection+)>
<!ELEMENT Selection (Column,Operator,Constant)>
<!ELEMENT Column (#PCDATA)>
<!ELEMENT Operator (#PCDATA)>
<!ELEMENT Constant (#PCDATA)>


<!ATTLIST OntologyMapping sourceKind CDATA #REQUIRED>
<!ATTLIST Mapping connectionName CDATA #IMPLIED>
<!ATTLIST Mapping sourceKind CDATA #IMPLIED>
<!ATTLIST Ontology type (concept|property) #REQUIRED> 
<!ATTLIST RefOntology type (concept|property) #REQUIRED>