2. The method of claim 1 , wherein the at least one descendant class of graphical objects inherits at least one aspect from the first class of graphical objects.
2. The method of claim 1 , wherein the at least one descendant class of graphical objects inherits at least one aspect from the first class of graphical objects. 3. The method of claim 2 , wherein the contents of the at least one descendant class of graphical objects are represented by a block diagram that is executable.