Accuracy in Modeling with Extended Entity Relationship and Object Oriented Data Models

Accuracy in Modeling with Extended Entity Relationship and Object Oriented Data Models

Douglas B. Bock, Terence Ryan
Copyright: © 1993 |Pages: 10
DOI: 10.4018/jdm.1993100103
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Abstract

This research compares success in developing conceptual data models for the extended entity relationship (EER) model and Kroenke’s object oriented model. A laboratory study was used to evaluate model correctness for 38 subjects divided into two equally sized groups where each group was trained in one of the modeling methods. Modeling correctness is measured in terms of eight different facets of a conceptual data model: (1) entities/objects, (2) attribute/property identifiers, (3) categories, (4) unary one-one relationships, (5) binary one-many relationships, (6) binary many-many relationships, (7) ternary one-many-many relationships, and (8) ternary many-many-many relationships. The EER model provided significantly improved performance for the attribute/ property identifier, unary one-one relationship, and binary many-many relationship facets.

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