Change Log: 6/05/2007 (J. Pantella) -- Per CR 2007-7: Added "HAE" (Height Above Ellipsoid) enumeration to the VerticalDatumType; Added "Kilometer" to the LengthMeasureType; modified the "Mile" enumeration to "StatuteMile". See also http://metadata.dod.mil/mdr/irs/cm/CR/2007/DDMS-CR-2007-7. 7/05/2007 (J. Pantella) -- Declared a targetNamespace for this schema, moving all types into the "http://metadata.dod.mil/mdr/ns/DDMS/1.4.1/" XML Namespace. 1/3/2007 (J. Pantella) -- Modified version attribute to reflect that this is version 1.4.2. 7/15/2008 (J. Pantella) -- Modified version attribute to reflect that this is version 2.0.