[Quality management with information systems].

Three information systems are described, whose data are simultaneously used for quality management and others tasks. They show, that the completeness of documented diagnoses is dependent of their appraisal of the physicians. The support of coding by information technology brings an essential improvement. The compliance of physicians with rules has to be reviewed in regular intervals. Quality assurance of a process should be made in short intervals, to be able to intervene in time. Individual efficiency control stimulates each participant to improve his work. These examples show, that information systems can undertake quality management and other tasks besides. Such systems are important, when hospitals attend KTQ-certification.