GIS represents a working technique more and more useful for contemporary world both in the field of theoretical
research and in very many practical activities. In fact, GIS represents a system that has more informational
components, reported to geographical coordinates. Components introduction, their storing, interpretation and
analysis is done by means of the computer, the result being mainly the ability to see some complex information,
spatially differentiated in comparison to real geographical coordinates. Secondly, GIS techniques allow combining
information of different types (figures, images, maps), hardware and software components, all being under the
direct coordination and determination of the human component, in order to make analyses and correlations of
great complexity