You can think of a class as a template that creates new objects. A class defines the instance variables of an object, much like a type definition statement in other programming languages. Methods are also stored in the class, instead of each object instance having a separate copy.

When you create parts, you do not have to worry about the syntax of a class definition because VA Smalltalk creates the definition for you.

In Creating reusable parts you will learn more about creating new classes.