This paper presents a method for calculating cost savings of shared architectures in industrial companies called AME (Architecture Mapping and Evaluation). The main contribution is an operational method to evaluate the cost potential and evaluate the number of product architectures in an industrial company. Experiences from the case company show it is possible to reduce the number of architectures with 60% which leads to significant reduction of direct material and labor costs. This can be achieved without compromising the market offerings of products. Experiences from the case study indicates cost reductions between 0,5 and 2 % of turnover. The main implication is that the method provides a quantitative basis for the discussion on whether or not to implement shared product architectures. This means a more fact based approach is introduced.
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