Computer integrated environments which address centralised industrial infrastructures may utilise single standard product models. However the building industry requires a more specific, domain-oriented approach. One impetus to-date for developing such an approach is the desire to integrate into the design process the substantial work that has been undertaken in developing analytical models for diverse aspects of energy use. The process of architectural design is undertaken increasingly in computational environments. It thus becomes possible to integrate quantitative consideration of the energy implications of design decisions into a design process. Two approaches which constitute initial steps towards the achievement of these aims are described in this paper.
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