Publications

This page shows all publications that appeared in the IASI annual research reports. Authors currently affiliated with the Institute are always listed with the full name.

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IASI Research Report n. 230  (Previous    Next)


Michele Missikoff

From relational to semantic data model: an evolutionary approach.

ABSTRACT
Relational systems represent an established reality and their use is steadily spreading, but at the same time the need is increasing for semantically richer data models, and efficient database systems based on the latter. There are two basic approaches to semantic database systems: one that tackles the problem from scratch, which appears promising in the long run, and another that relies on existing technology, which aims to obtain acceptable solutions in the short term. The first part of this paper presents an example of the latter approach showing that many concepts which characterize a semantic data model are already present in the relational model or can be easily derived from it. In the second part of the paper a semantic data model, called MKM (Mosaico Knowledge Model), is presented using a formalism that allows to describe it in a precise manner and to give the criteria for the design of correct knowledge schemata. MKM has been used as the base for the design of Mosaico: a knowledge base management system currently under development at IASI.
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