The user may define subclasses of this class.
The quality of the data may be given through instances of this class. It contains a series of attributes which characterize different aspects of data quality.
structuring: this specifies a series of attributes related to the notion of planar enforcement in two or three dimensional space. These include ideas about shared points and boundaries, space filling (i.e., overlapping), undefined regions within the spatial extent of the data, the valid use of geometric and relationship subclasses, and the like.
positional: specifies absolute and relative accuracies pertinent to coordinate data.
attribute: specifies statistical measures associated with the thematic content of the data, i.e., content as opposed to positional accuracy.
clipping: indicates whether any geometric objects have been truncated in order to meet the data transfer request. If any geometric object in the geographic object being transferred has been truncated in any way, the value of clipping is true. If no truncation has occured, the value for clipping is false. Note that specific cases where clipping has occured can be identified using the GeometryExtended subclass or the Clip relationship.
integrity: provides the results from a series of data quality tests.