Abstract head of the substitution group for designs of construction activities: theplanned counterpart of diggs:AbstractConstructionActivity. A construction activitydesign plans the act (method, equipment, the features it is to build), not the thingbuilt; designs of the built features are under diggs:AbstractSamplingFeatureDesign.
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="AbstractConstructionActivityDesign" type="diggs:AbstractConstructionActivityDesignType" substitutionGroup="diggs:AbstractProgramDesign"><annotation><documentation>Abstract head of the substitution group for designs of construction activities: the planned counterpart of diggs:AbstractConstructionActivity. A construction activity design plans the act (method, equipment, the features it is to build), not the thing built; designs of the built features are under diggs:AbstractSamplingFeatureDesign.</documentation></annotation></element>