Data Modeling vs. Database Design

01 Dec 96 updated


Data Modeling at AIS Data modeling and relational database design are nearly synonomous in many minds. Most data modelers consider their end product to be a relational database instance which implements the requirements asked of the data model.

Of course not all data bases are relational; a very small portion are "object oriented" and a large plurality are probably still hierarchical or networked. However the vast majority of databases for which we construct data models today are relational.

While data modeling and relational database design overlap substantially, their purposes and scope diverge enough to cause users major problems if we ignore their differences. This article examines some ways in which current data modeling tools and methods confuse, mislead, and obscure our database design efforts.


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