This paper shows the necessary elements for the effective implementati
on of the generalized fuzzy relational database model. From the model
described in Medina et al. (1994) some criteria for representation and
handling of imprecise information are introduced, the most important
aspect being the simplicity of the implementation. The paper shows a s
eries of mechanisms to implement imprecise information in a classical
RDBMS. Having the information represented in a classical RDBMS data st
ructure and having the implementation of procedural knowledge about su
ch information, we will be able to build a FRDBMS on a host RDBMS.