The patient folder integrates information originating from heterogeneo
us sources. For this reason computerized tools for patient data manage
ment should exploit the advantages of multimediality and offer an inte
grated environment for data presentation, and image and bic signal vis
ualization, Object-oriented modeling is the best approach for designin
g systems for multimedia patient folder management. We propose an obje
ct-oriented model, able to define the entities constituting the patien
t folder and their logical organization. This model has sufficient fle
xibility to adapt to the most varied clinical environments. It allows
the physician to structure the information needed for his/her patient
folder without employing a programming language.