ABSTRACT FACTORY (GOF)

In my own word and understanding, abstract factory is a method of enclosing a group of single factories that are related to each other. One of the things I noticed in abstract factory is that, an individual that is not good in programming or UML diagram will always find it difficult to use abstract factory because is based on programming and UML diagram. In abstract factory, we should always have this in mind that there will always be a participant and a class diagram. A participant, which is the actor in the object that is use to for the purpose of understanding and illustration in the class diagram. A UML diagram, this is a diagram representation to show the actor, use case and their interrelationship. e.g.

(1)Fig 1

BENEFITS
consistency
changes can be done easily

REFERENCE
http://www.apwebco.com/gofpatterns/creational/AbstractFactory.html#benefits