New architecture of fuzzy database management systems

Abstract EN

Fuzzy relational data bases have been extensively studied in a theoretical level.

Unfortunately the repercussions of these works on the practical plan are negligible.

Medina et al.

Have developed a server named fuzzy SǪL supporting flexible queries and based on a theoretic model called GEFRED.

This server has been programmed in PL / SǪL language under oracle database management systems.

To model the flexible queries and the concept of fuzzy attributes, an extension of the SǪL language named fuzzy SǪL has been defined.

The FSǪL language extends the SǪL language, to support the flexible queries with many fuzzy concepts.

The FRDB is supposed has already been defined by the user.

In this paper, we extend the work of medina et al.

to present a new architecture of fuzzy DBMS based on the GEFRED model.

This architecture is based on the concept of weak coupling with the DBMS oracle.

It permits, in particular, the description, the manipulation and the interrogation of FRDB in FSǪL language.