Medical and administrative information modelling of a hospital university centre pneumology department.

Instead of a technology-oriented approach of a hospital information system (HIS), the authors present a structure oriented approach built on three elements: objects, events and operations which allow one to model a static and dynamic schema of an information system (IS). Objects of the static schema lead to a relational model. Events expose various states of Information System; operations allow one to build a dynamic schema. Such a schema is interesting for IS description in order to enhance the analytical capability of the designer, to define IS solutions and to limit the risks of errors. It allows the clinician better management of information relative to patients, especially thanks to the dynamical schema which enables one at any moment to know the patient's state. Finally, it has to free clinicians from managing information and allow them to give an always more important consideration to human relationships in medicine.