Chapter 4-3
Copyright © 2004 Pearson Education, Inc.
Elmasri/Navathe,
Fundamentals of Database Systems, Fourth Edition
THE
BASICS
• Fundamental Principle of Modeling:
• Data Abstraction
• Basic Process of Modeling
• Define building blocks for
• holding groups of data
• Use rules of a data model to establish
•
relationships among blocks
• Add constraints - structural/ semantic
