Beyond relational databases

Abstract

The paper is a tutorial introduction to the semantic aspects of data not captured in the relational model. An overview of the development of data-storage concepts is presented to explain the emergence of the relational model as the 'market leader' among data models. This is followed by a critique of the model's ability to represent fully the semantics of data. Then an overview is given of one model that possesses richer facilities for semantic modelling, RM/T. © 1990.