“Designers uniformly complain that they are ignored, that they are called in too late, that people complain that when they make suggestions because it costs too much money or slows down the product. It seems that designers are not applying their own methods to their own problems – that when you find a problem, you need to step back to see what the root causes are. If for years, designers are complaining that they are ignored, well, maybe there’s a reason why. ” - Don Norman advise