Transformations of languages of designs: part 3

The model for defining transformations of languages of designs presented in part 1 of this paper is illustrated using two well-known architectural styles of Frank Lloyd Wright. The Usonian houses of Wright's later career are characterized as a transformation of his earlier prairie houses by changing a grammar defining the earlier style into a grammar defining the succeeding one. General conclusions concerning the use of the model for comparing and constructing languages of designs are also given.