Projecting databases and information systems

A systematic approach in the project of a database allows to treat information, apparently complex, in an exhaustive, efficient and effective way. The reference methodologies are now consolidated in the field of software engineering and they found direct application in different applicative contexts where the managing and aggregation processes and the analyses of big sets of data are critic. The base model for the logic analysis of the structures and the set of the constructions useful to data representations refer to the so-called Relational Model. The philosophy of information extraction is reconducted to the manipulation of Tables containing data instances and to simple Cartesian products