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A Generative Expert System for the Design of Building Layouts

  • U. Flemming
  • R. Coyne
  • T. Glavin
  • M. Rychener

Abstract

Starting with [Grason 70] and [Steadman 70] and continued through [Mitchell et al. 76] and [Flemming 78], work on the exhaustive enumeration of solutions to layout problems has produced a particular approach which, by now, has established itself as a fully developed paradigm. This paradigm achieves great conceptual clarity by drawing a clean distinction between, on the one hand, the quantitative and continuous properties of a solution (such as the dimensions of the spaces allocated) and, on the other hand, some of its qualitative or discrete properties (particularly the geometric or spatial — not necessarily topological — relations between the allocated spaces). The paradigm stresses the importance of using a formalized representation for properties of the second type and calls for an explicit specification of the necessary and sufficient conditions under which such representations are to be considered well-formed or syntactically correct; that is, every representation of a solution satisfies these conditions and every object that satisfies these conditions represents a solution. In the enumeration of solution sets, these representations play a crucial role in two ways:
  1. (1)

    Each representation is an abstraction since it supresses certain properties of the solution it describes. Different solutions can therefore have the same representation, and each representation consequently describes not a single solution, but an entire class or subset of solutions. Under a suitably selected representation, the (possibly infinite) set of solutions is divided into a finite set of subsets which can be enumerated by generating all well-formed representations as objects.

     

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Copyright information

© Springer-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  • U. Flemming
    • 1
  • R. Coyne
    • 1
  • T. Glavin
    • 1
  • M. Rychener
    • 2
  1. 1.Department of ArchitectureCarnegie-Mellon UniversityPittsburghUSA
  2. 2.Design Research CentreCarnegie-Mellon UniversityPittsburghUSA

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