OXO Simon Gardner OXO - layered complexity for educational use This project took the previously existing OXO model (oxoJoy1994) and separated the functionality into cognitive layers (see racingGardner1999 for description of cognitive layers). The original version had only a text based interface, this model has a graphic interface and can be used to highlight strategies for playing OXO and exploring variations of the game itself. [Chris R] 1999 8 oxoGardner1999 Summer model tkeden %eden %scout %donald Pics/screenshot1.gif Docs/oxo.html oxoJoy1994 paper33 game simulation education HCI