ABSTRACT
This chapter deals with space planning in architectural design. It describes an interactive layout design model that the problem specification is gradually under control of the designer is proposed for APSIS considering the complex aspects of space planning as a design problem. In each phase of this gradual process, the task of APSIS is to automate layout generation and form a feedback report to let the designer make decisions by revising the constraints. The exhaustive search of APSIS generates all grid plan layouts that satisiy all constraints specifying layout problems at one floor level. Space planning process involves a progression in problem specification as satisfying solutions are reached so the problem specification needs to be interactive and under the guidance of the designer in a computer model. Several computer models have been developed to solve space planning problem in architectural design. APSIS generates the layouts on a grid coordinate system.
