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At Rolls-Royce, a study determined that manufacturing part cost can be estimated from dimensional data in the part definition. The method appears to be more accurate than mass-based parametric models or process simulation cost models. Additional advantages are: part definition information is causally related to part manufacturing cost; part definition information is easily available during the design phase; and mature part cost can be estimated even with new manufacturing processes. The theoretical basis for the model uses Shannon’s theory of information, work performed at MIT on calculating cost from information, and the results of the study at Rolls-Royce.

Design teams can create a higher performance, more affordable product through a clear and unified set of Design Values. To achieve unity, Design Values must be established, then communicated to the team. Project Management should establish and communicate uniform Values, despite technological and political difficulties, as a matter of good leadership.