Since GCVS IV, there
was no new GCVS edition. For the stars of the Name Lists, the GCVS data base provides incomplete
information.
Main reasons for the automatic-survey new variables remaining outside the GCVS for a long time:
different level of detail of
the classification systems, no perfect software
for automatic classification available;
individual approach to each
star that was always used in the GCVS cannot
be applied any longer, but the experience of automatically-updated catalogs evidences for the number
of errors being too high; software
for light-curve analysis is not standardized, accuracy of periods and other derived parameters being rather poor;
insufficiently accurate
coordinates for many automatic-survey variables
(see one of the next slides);
insufficiently standard
access to data from different surveys, ETC.