Editing Abstract factory pattern (section)

=== UML diagram ===
{{Plain image with caption|File:w3sDesign Abstract Factory Design Pattern UML.jpg|A sample UML class and sequence diagram for the abstract factory design pattern.
<ref>{{cite web|title=The Abstract Factory design pattern - Structure and Collaboration|url=http://w3sdesign.com/?gr=c01&ugr=struct|website=w3sDesign.com|access-date=2017-08-12}}</ref>|700px|align=left}}{{-}}
In the above [[Unified Modeling Language|UML]] [[class diagram]], 
the <code>Client</code> class that requires <code>ProductA</code> and <code>ProductB</code> objects does not instantiate the <code>ProductA1</code> and <code>ProductB1</code> classes directly. Instead, the <code>Client</code> refers to the <code>AbstractFactory</code> interface for creating objects, which makes the <code>Client</code> independent of how the objects are created (which concrete classes are instantiated). The <code>Factory1</code> class implements the <code>AbstractFactory</code> interface by instantiating the <code>ProductA1</code> and <code>ProductB1</code> classes.

The [[Unified Modeling Language|UML]] [[sequence diagram]] shows the runtime interactions. The <code>Client</code> object calls <code>createProductA()</code> on the <code>Factory1</code> object, which creates and returns a <code>ProductA1</code> object. Thereafter, the <code>Client</code> calls <code>createProductB()</code> on <code>Factory1</code>, which creates and returns a <code>ProductB1</code> object.