In an invited talk at Instituto Superior Técnico in Lisbon the “legendary game designer and developer” Warren Spector spoke of game design and game project methodology. In the concept phase he usually draws maps to represent game structure. These drawings, he says, are great to show his ideas to the rest of the developer team. Game structure as interactive storytelling structure can be very complex. Ideas often must be grabbed in paper and discussed with other before materializing in the screen with characters and actions.