Frey, D.D.; P.M. Herder; Y. Wijnia; E.Subrahmanian; K. Katsikopoulos and D.P. Clausing: An Evaluation of The Pugh Controlled Convergence Method, pp. 41-58. In Research Engineering Design 20, No. 1 (2009). [London]: Springerlink, 2009. ISSN: 0934-9839 (Print) 1435-6066 (Online). International Journal (Refereed)
This paper evaluates the Pugh Controlled Convergence method and its relationship to recent developments in design theory. Computer executable models are proposed simulating a team of people involved in iterated cycles of evaluation, ideation, and investigation. The models suggest that: (1) convergence of the set of design concepts is facilitated by the selection of a strong datum concept; (2) iterated use of an evaluation matrix can facilitate convergence of expert opinion, especially if used to plan investigations conducted between matrix runs; and (3) ideation stimulated by the Pugh matrices can provide large benefits both by improving the set of alternatives and by facilitating convergence. As a basis of comparison, alternatives to Pugh’s methods were assessed such as using a single summary criterion or using a Borda count. These models suggest that Pugh’s method, under a substantial range of assumptions, results in better design outcomes than those from these alternative procedures.