A CASE tool for conceptual database design |
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Authors: | KL Siau HC Chan KP Tan |
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Affiliation: | Department of Information Systems and Computer Science, National University of Singapore, Kent Ridge Crescent, Singapore 0511 |
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Abstract: | The paper describes a Computer Aided Software Engineering (CASE) tool to support conceptual database modelling. One popular approach for conceptual database modelling is use of the Entity-Relationship (ER) model. The paper proposes the use of an Enhanced Entity-Relationship (EER) model for conceptual database modelling. This Enhanced Entity-Relationship model extends the Entity-Relationship model by incorporating the generalization/specialization, aggregation and categorization abstractions. The CASE tool, which is based on the Enhanced Entity-Relationship model, is known as the Enhanced Entity-Relationship Diagrammer (EERD). In addition, the CASE tool supports direct visual query and update based on the EERM. |
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Keywords: | CASE tool conceptual database modelling enhanced-ER diagram |
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