Obtaining, handling and distributing information among participants in the building design process has become more difficult with increasing project complexity. In individual areas such as scheduling, estimating and drafting, it is possible to have access to computerized tools but it is clear that there is a gap in architects' offices regarding the integration of these tools into a unified system. Architects work closely with engineers, clients, suppliers, and public authorities. Managing the information flow among these participants may not be much of a problem in small offices. But the larger architectural offices face serious management-related problems in the design process because of the lack of an efficient information system. This paper presents a computer-based information system called ASAP that was developed to respond to the stated problem of large architectural offices. The conceptual framework as well as a description of the prototype are presented in this paper.