Dogs between one and two years old were evaluated at the ZTP (Zucht Tauchlichkeits Pruefung). Dogs over two years of age were evaluated at the Koerung. At evaluations the Wertmessziffern system was used to rate individual dogs using a six digit system. The first three digits dealt with the anatomy of the dog, while the last three digits related to the temperament and nervous system.
the DDR Rating System for dogs. In the old East Germany the Schutzhund and working dogs were rated by the Wertmessziffer system. In English Wertmessziffer means "measured value number". This system was quick and easy to understand for breeders/buyers wanting to get a look into the conformation and temperament of any dog that had been evaluated and rated. Dogs breed surveyed in the DDR were assigned a series of numbers used to describe the dog's physical and mental charcteristics. Have you ever wondered what the series of 6 numbers actually mean? The following table is a translation of the system (no guarantees) so you may decipher any dog's körung. An ideal schutzhund or working dog's Körung would read 5555/55. A dog rated from ***3/33 to ***7/33 may still be useful as a police or military dog.

As an example, a dog with a Wertmessziffer rating of 6545/55 would be a powerfully built dog with ideal constitution, good angulation. It would be be relaxed and friendly yet very hard when provoked. It's courage and sharpness would be very good.
Only dogs that passed rigorous evaluations were permitted to
reproduce. This information was organized according to sires and dams
and published periodically as a tool for breeders. This provided an
exceptional tool for the improvement of the breed. Mainly service dogs
developed.
We believe that the ideal dog would be one with a
korung of 6654/55. This would be a dog that was powerful, robust and
substantial, with excellent conformation and lines. The dog would be
sharp and aggressive, exhibiting very good fight drive and hardness.