  We report on the progress of the development of CVcat, an interactive
catalogue on Cataclysmic Variables, which is the first application based on
AstroCat, a general framework for the installation and maintenance of web-based
interactive astronomical databases. Registered users can contribute directly to
the catalogue content by adding new objects, object properties, literature
references, and annotations. The scientific quality control of the catalogue is
carried out by a distributed editorial team. Searches in CVcat can be performed
by object name, classification, certain properties or property ranges, and
coordinates. Search results can be retrieved in several output formats,
including XML. Old database states can be restored in order to ensure the
citability of the catalogue. Furthermore, CVcat is designed to serve as a
repository for reduced data from publications. Future prospects include the
integration of AstroCat-based catalogues in the international network of
Virtual Observatories.
