denotes has coordinate unit label zero-dimensional spatial region data item cartesian spatial coordinate datum 1 AR notes: We need to discuss whether it should include site. 2009-08-18 Alan Ruttenberg - question to BFO list about whether the BFO sense of the lower dimensional regions is that they are always part of actual space (the three dimensional sort) http://groups.google.com/group/bfo-discuss/browse_thread/thread/9d04e717e39fb617 A cartesian spatial coordinate datum is a representation of a point in a spatial region, in which equal changes in the magnitude of a coordinate value denote length qualities with the same magnitude Alan Ruttenberg http://groups.google.com/group/bfo-discuss/browse_thread/thread/9d04e717e39fb617 metadata complete