LE-PAROLE project for the morphological and syntactic layers, the LE-SIMPLE project for the semantic model and lexicon and the Italian project CLIPS 2 for the phonological level and the extension of the lexical coverage. The theoretical model underlying this lexicon is based on the EAGLES recommendations, on the results of the EWN and ACQUILEX projects and on a revised version of Pustejovsky’s Generative Lexicon theory (Pustejovsky 1995). In spite of the different underlying principles and peculiarities characterizing the two lexical models, IWN and PSC lexicons also present many compatible aspects and the reciprocal enhancements that the linking of the.