Source : Free On-Line Dictionary of Computing

Program Design Language
     
        Any of a large class of formal and profoundly useless
        pseudo-languages in which {management} forces one to design
        programs.  Too often, management expects PDL descriptions to
        be maintained in parallel with the code, imposing massive
        overhead of little or no benefit.
     
        See also {flow chart}.
     
        (1995-04-01)