From Ptolemy to Heisenberg: quantitative models and reality

Abstract

An aspect of methodology in research in the field of design economics and cost modelling is described, discussed and evaluated. This review is designed for post-graduate students and built-environment professionals embarking on a PhD in that field. Models, built using methods regarded as 'scientific' at the time, have enabled us to solve specific problems and to learn more about the world. A generalized approach to building and testing symbolic models is outlined. In conclusion, a number of limitations are identified which are inherent in the conventional quantitative modelling approach.