1. Introduction
Chapter Outline
1.1 Some Questions about Data Models 3
1.2 Purpose 4
1.3 Target Audience 5
1.4 What Is a Data Model? 5
1.5 Why Do We Do Data Models? 5
1.6 Approach to Data Modeling 7
1.7 Structure of This Book 7
In this Chapter I set out what I am trying to achieve with this book, describe who the target audience is, and look at some challenges in data modeling that I will address.
1.1. Some Questions about Data Models
What is a data model for? Once upon a time a data model was simply an abstraction of the table and column structure of a database that showed how the tables related to each other. (Today we would probably call this a physical data model.) It was not long before the logical ...
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