CCBA® and CBAP® Certifications Study Guide

Key concepts

Key concepts that a business analyst should understand about data modeling include the following:

• Entity (or class): An entity (sometimes referred to as a class) represents the element of a database that information is stored in. It is most commonly a person or a thing that the organization wants to store information about.

Some examples of entities are an employee, customer, product, or order name.

• Attribute: An attribute is a piece of information that describes an entity.

Some examples of attributes are a first name, last name, order number, date, or amount of something.

• Relationships (or associations): A relationship shows whether two entities relate to each other and what their relationship is.

An example of a relationship ...