Architects have a tough job: They need to check everything, workout alternatives and then choose what works best for their project. TAD gives a system that allows use of abductive logic and chooses one from a set of alternatives. So the real hard problems of the world such as energy consumption, water usage, etc can all be tackled. At the same time, TAD is free -- and architects get a second source of revenues: They can lease out their designs to software developers who, in turn, can develop rich graphical space based applications using the "indoor maps" from architects. It is an exciting world of design indeed! Come join us [email protected]