Extending similarity-based fuzzy object-oriented data model

Uncertainty modeling and manipulation is required in objectoriented environments to handle complex objects with uncertain properties which occurs in many non-traditional applications. In this paper, we enhance a previous description of a fuzzy object-oriented data model [2] l ead ing to a t ruer representation of fuzzy hierarchies. Kcywords: Uncertain Information, Fuzzy Set Theory, Fuzzy Object-Oriented Data Model