FAD is a powerful and simple language designed for a highly parallel database machine. The basic concepts of the language are its data structures (which we call objects) and its p...
Abstract. We introduce and study a tactic language, Hitac, for constructing hierarchical proofs, known as hiproofs. The idea of hiproofs is to superimpose a labelled hierarchical n...
Abstract. We provide a formal characterization of a notion of contextual taxonomy, that is to say, a taxonomy holding only with respect to a specific context. To this aim, a new pr...
Abstract. With the recent trend to model driven development a commonly agreed notion of "model" becomes a pivotal issue. However, currently there is little consensus abou...
Abstract. We are interested in the development of a database management layer which is completely portable and, therefore, "pluggable" on top of multiple host platforms. ...