Cathode Ray Tube technology is mature. And, as we all know, maturity has its good and bad points. First the good points: The cost of CRTs is low, performance is high, their design is well understood, manufacturing facilities are well established, and their use is ubiquitous - leading to economies of scale in their mass production. On the other hand, less mature technologies are at hand whose advantages for some of today's applications cannot be met by CRTs. Thus, CRT engineers and work station designers who work with CPTs face significant new challenges based on the changing uses and users of advanced systems. Today, I will focus on some of the changes taking place in display use and discuss some engineering criteria that can be applied to satisfying new needs. Make no mistake about it, the criteria I suggest to you will tax the foreseeable state of the art.