Since many years, we developed a rather wide expertise on modeling IS features by using numerical modeling tools. Our team close collaborates with state solid physics science teams, in Italy and abroad. Octopus, NWChem and more computing tools are the daily friends (or enemies, it depends on final results..) of our research activity. Along this web site you will find a lot of scientific data which were obtained with the aid of such a computing tools. Further information may be find on the official web sites for Octopus and NWchem