I could be wrong, but I think he's talking about computer programming. Well I could be wrong here too, but I believe most coasters start out as blue prints, using what they did in the 1900's called "pencil and paper". lol. then I believe it is drafted into a computer to test if it could actually happen.... then they make a miniture model of it.
I know very little about this though... so I still have to *shrug*.
-------------
www.angelfire.com/in3/rct