Working from the concept model, manually create a logical model of your database
This article is the fourth in a series about data modeling. In "Data Modeling," April 2000, I discussed gathering the requirements for the project. Next, I covered process modeling in "Process Modeling," May 2000, to illustrate what happens to the data as it moves through the system. Then, in "Entity Modeling," June 2000, I developed a concept model, or entity relationship diagram (ERD), of the database. This month, I forward-engineer that ERD into a logical model, which is a closer representation of the evolving database.
Lik...