So why model? We model in order to feel able to act in the world.  The kind of model this book focuses on is the one that allows us to create the illusion, at least, that we’ve reduced the world down to something we can understand and act upon.   Again, this is not a truth claim.  It is merely that we are willing to sustain the belief or the illusion that we are capable of acting.  We reduce the world to create that illusion or belief for ourselves. Traditional management tends to be concerned with realist models of reality and realist models tend to deal with codes.