| CLASS | Define a Class for Object Oriented Programming |
| CLASSDATA | Define a CLASSDATA variable for a class (NOT for an Object!) |
| DATA | Alternate syntax for VAR: instance variable for the objects. |
| ENDCLASS | End the declaration of a class. |
| ERROR HANDLER | Designate a method as an error handler for the class |
| MESSAGE | Route a method call to another Method |
| METHOD | Declare a METHOD for a class in the class header |
| ON ERROR | Designate a method as an error handler for the class |