Both regional health information systems and hospital information systems need systematic information management. Due to their complexity information management needs a thorough description or model of the managed HIS. The three layer graph based meta model (3LGM2) and the 3LGM2 tool provide means for effectively modeling HIS. The 3LGM2 tool has been used to build a model of the health information system of the German federal state Saxony. The model is not only used to support the further development of the Saxonian health information system but also for supporting strategic information management planning in the medical center of Leipzig University. Acceptance of the method depends strictly on its integration in management structures on the institutional, regional, national or even European level.
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