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It is necessary to exchange information between the various institutions of the medical faculty of the University of Erlangen-Nurnberg. For example, basic patient data, which is collected in a central computer, must be distributed to various stations and laboratories. Also medical findings, which are already captured in computers in central laboratories, must be transmitted to various parts of the university hospitals. After the data network, consisting of a glass fiber backbone linking the buildings and cabling in the individual departments, had been implemented, it became possible to provide an electronic exchange of medical information.

A major problem for many Hospital Information Systems is separating modules to meet the information requirements of specialized parts before integration into one system. In most cases the interfaces are proprietary, leading to an enormous amount of implementation work for access to other systems. International Standards, such as a common language in Medical Communication, offer the possibility of reducing this variety and enhancing the information interchange by connecting more systems in shorter time with less cost.