The software has been tested for about a million generated names (patients) and 70 workstations in client/server surrounding and showed no malfunctions whatsoever. A user's priority levels are defined. The software works on «User friendly» principles and is orientated towards users. It is easy and simple to use. All versions are based on a single-mask logic / relation: Patient - examination - X-ray, CT, MR, ECHO - automatic schedule. The software is basically modular. It has an integral “standalone” versions for single private practices which can integrate modules and records of various specialists’ treatements,and it is designed according to requirements of a user.