add node relat edg object node model facad model element node list spec arrai list model facad client depend node spec add model facad supplier depend node iter iter spec iter iter object depend iter add edg depend add edg depend commentlink comment iter comment link comment annot element collect cmnt arrai list model facad comment node cmnt add model facad annot element node todo comment element uml model facad model element node cmnt add model facad comment node iter iter cmnt iter iter object ae iter comment edg ce comment edg node ae add edg ce add edg ce 