Level 2 Fuzzy Relations in Database Modeling

Abstract

In this paper we introduce the concept of level 2 fuzzy relation. Level 2 fuzzy relations play very important role in level 2 fuzzy logic system. Level 2 fuzzy set is extension of ordinary fuzzy set in the sense, when domain elements of ordinary fuzzy sets are fuzzy; the resulting set is called level 2 fuzzy sets. Using same approach we have defined level 2 fuzzy relations, its operations and its role in database modelling.