Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 9, Problem 10RQ
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Steps required in the development of an ER diagram:
The below are the eight steps that are required in the development of the ER diagram:
Step 1:
Business rules are identified, analyzed and refined.
Step 2:
Based on the results obtained from the step 1, the main entities can be obtained.
Step 3:
Based on the results obtained from the step 1 and 2, the relationships among the entities are obtained.
Step 4:
The attributes, primary keys and foreign key are defined for each of the entities...
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Database Systems: Design, Implementation, & Management
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