Æliens

• abstract data type -- interface description
• object generator -- template for creation
• repository -- for sharing resources
• object -- instance of a metaclass

• everything is an object
• every object belongs to a class
• every class inherits from the class Object
• class variables of an object are instance variables of its class

   name         Class
   supers      (Object)
   iv     (name supers iv methods)
   methods      (new ...)