Towards the Methodology for Development of Fuzzy Relational Database Applications

Srđan Škrbić1, Miloš Racković1 and Aleksandar Takači2

  1. Faculty of Science
    Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
    {shkrba, rackovic}
  2. Faculty of Technology
    Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia


In this paper we examine the possibilities to extend the relational data model with the mechanisms that can handle imprecise, uncertain and inconsistent attribute values using fuzzy logic and fuzzy sets. We present a fuzzy relational data model which we use for fuzzy knowledge representation in relational databases that guarantees the model in 3rd normal form. We also describe the CASE tool for the fuzzy database model development which is apparently the first implementation of such a CASE tool. In this sense, this paper presents a leap forward towards the specification of a methodology for fuzzy relational database applications development.

Key words

fuzzy database, fuzzy-relational data model, fuzzy-relational CASE tool

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Publication information

Volume 8, Issue 1 (January 2011)
Year of Publication: 2011
ISSN: 1820-0214 (Print) 2406-1018 (Online)
Publisher: ComSIS Consortium

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How to cite

Škrbić, S., Racković, M., Takači, A.: Towards the Methodology for Development of Fuzzy Relational Database Applications. Computer Science and Information Systems, Vol. 8, No. 1, 27-40. (2011),