Chapter 1 Data Modeling Primer

This chapter will provide a brief overview of data model components including how to read a data model. For more content, please refer to my book Data Modeling Made Simple.

Entities

An entity represents a collection of information about something that the business deems important and worthy of capture. Each entity is identified by a noun or noun phrase, and it fits into one of six categories: who, what, when, where, why, or how. Here is a definition of each of these entity categories along with examples:

Category

Definition

Examples

Who

Person or organization of interest to the enterprise. ...

Get Data Model Scorecard: Applying the Industry Standard on Data Model Quality now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.