In order to reproduce the past operations of a medical system, a reproduction test service apparatus stores a plurality of past log files directly or indirectly supplied from the medical system in a log file storage unit and reproduces the past operations of the medical system on a pseudo X-ray CT system...http://www.google.de/patents/US8015443?utm_source=gb-gplus-sharePatent US8015443 - Reproduction test service apparatus for medical systems, maintenance support information management apparatus, X-ray CT system, and maintenance service center apparatus