in a data processing system and an operating method therefor , a medical text is automatically read into an evaluation unit of the data processing system , medical terms are automatically searched for in the medical text using a rule set stored in the data processing system , a term identified by means of the rule set is compared with latin terms stored in a first databank , the identified term is compared with terms classified according to diagnosis criteria and stored in a second databank , and after evaluation of both databanks , the technical term is replaced by a corrected term .