A system of geotechnical unit observations. Geotechnical units are bodies of earthmaterial distinguished by one or more characteristic engineering properties. Theobservations in a system do not overlap.
Database handle for the object. It is of XML type ID, so is constrained to beunique in the XML document within which it occurs. An external identifier for the object inthe form of a URI may be constructed using standard XML and XPointer methods. This is doneby concatenating the URI for the document, a fragment separator, and the value of the idattribute.
Source
<element name="GeoUnitSystem" substitutionGroup="diggs:AbstractObservationSystem" type="diggs:GeoUnitSystemType"><annotation><documentation>A system of geotechnical unit observations. Geotechnical units are bodies of earth material distinguished by one or more characteristic engineering properties. The observations in a system do not overlap.</documentation></annotation></element>