Data Modeling Concepts

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Table of Contents

Data Modeling Concepts

Data Models

High-level modeling concepts

Implementing the schema

Entity-Relationship (ER) Model

Entities and Attributes

Types and instances

Relationships

Keys

Relationship Cardinalities

Relationship Attributes

E/R Notation

The Real Problem

E/R Model Strengths and weakness

 Author: Martin Dickey

Email: dickey@cs.washington.edu

Home Page: http://www.cs.washington.edu/education/courses/444/99sp/

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