The Quality of Data Representations Developed by NonExpert Designers: An Experimental Study

The Quality of Data Representations Developed by NonExpert Designers: An Experimental Study

Dinesh Batra, Peeter J. Kirs
Copyright: © 1993 |Pages: 13
DOI: 10.4018/jdm.1993100102
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Abstract

A laboratory study was conducted to compare the quality of conceptual data representations in the relational form developed by non-experts using the data aggregation (DA) approach and the logical relational design methodology (LRDM). While significant differences were not found between the quality of the relational solutions developed using the two techniques, differences were noted with respect to the intermediate diagrams produced. Furthermore, subjects using the LRDM developed satisfactory Entity-Relationship (ER) solutions, but were not able to appropriately translate the ER solutions into the relational form. Subjects using the DA approach developed poor quality representations both in the data aggregation and the relational form. The findings from this study suggest that conceptual data modeling performance can be improved by using design aids which can perform the translation of ER diagrams into relations.

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