Simulation of hepatological models: a study in visual interactive exploration of scientific problems

  • Authors:
  • P. Mussio;M. Pietrogrande;M. Protti

  • Affiliations:
  • Università degli Studie di Milano, Dip. di Fisica, Via Viotti 5, Milan, Italy;Università degli Studi di Milano, Istituto di Medicina Interna, via Pace 9, Milan, Italy;Università degli Studie di Milano, Dip. di Fisica, Via Viotti 5, Milan, Italy

  • Venue:
  • Journal of Visual Languages and Computing
  • Year:
  • 1991

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Abstract

In many different fields of science and technology, visual expressions formed by diagrams, sketches, plots and even images are traditionally used to communicate not only data but also procedures. When these visual expressions are systematically used within a scientific community, bi-dimensional notations often develop which allow the construction of complex messages from sets of primitive icons. This paper discusses how these notations can be translated into visual languages and organized into an interactive environment designed to improve the user's ability to explore scientific problems. To facilitate this translation, the use of Conditional Attributed Rewriting Systems has been extended to visual language definition. The case of a visual language in the programming of a simulation of populations of hepatic cells is studied. A discussion is given of how such a visual language allows the construction of programs through the combination of graphical symbols which are familiar to the physician or which schematize shapes familiar to him in that they resemble structures the observes in real experiments. It is also shown how such a visual approach allows the user to focus on the solution of his problems, avoiding any request for unnecessary precision and most requests for house-keeping data during the interaction.