By now, you should have the conceptual and logical model created that covers the data requirements for your database system. As we have discussed over the previous four chapters, our design so far needn’t follow any strict format or method. It didn’t have to be implementable, but it did have to cover the requirements that are data related. In some cases, the initial creator of the logical model may not even be a database professional, but a client who starts the model. Changes to the logical model meant changes to the requirements of the system.


Normal Form Relational Database Phone Number Database Design Area Code 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Louis Davidson with Jessica M. Moss 2012

Authors and Affiliations

  • Louis Davidson
  • Jessica M. Moss

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