Abstract The aim of this chapter is to describe some of the tools which have been developed (or are being developed) in Pisa within several projects, and which can be conceived as different modules of a ‘lexicographic workstation’. The present integrated system is mainly based on two prototypes: a textual database system (DBI for ‘Data Base Testuale’: see Picchi 1983 and 1991) and a lexical database system (LDB: see Calzolari 1988).