The treatment of large corpora and large dictionaries implies the necessity of a good database systems able to store, organize, manage and access very large quantities of data. The integration, or at least partial overlapping of the two areas means that the two approaches will be interacting more and more, and possibly merging with an exchange of methods and results. An Lexical Databases can be used, among others, as a powerful tool to investigate the organization of the lexical structure of a language. The general framework in which the are presently working in designing and building this Lexicographic Workstation is therefore based on the concept of a very modular system, where all the pieces can be easily integrated, each piece in its turn composed of a set of basic functions that can also be called up easily from other modules.