Fuzzy Reliability in Spatial Databases

Table 2

Spatial datasets and related attributes used in [4].

Layer	Parameter
Spot elevations (SE)	Density of uncoded SE
	Density of coded SE per ha
Contour lines	Mean density of contour lines for ha/mean slope
	Standard deviation of contour lines for ha/mean slope
Buildings	Mean of the absolute value of perimeter-shape length
	Mean of the absolute value of shape area
Network streets	Mean density of buffer area covered by buildings
	Standard dev. of buffer area covered by buildings