I know what the difference between 'WGS84' and 'Projected' means. I want to know why there are 'bounds'.
In epgs.org there are no such bounds. For 'ETRS89 / UTM zone 32 N' epsg.org says: So epsg.org includes Germany (which is valid) while the bounds of spatialreference.org did not include Germany.
(I want to understand what the 'bounds' mean because AutoCAD Map 3D seams do use these bound when consuming a WGS service.)