Abstract
Abstract Changing customer preferences, demand for quality and new technologies have led to very short product life cycles. This requires firms to have short product development lead times while keeping product cost low and quality high in order to stay competitive. In this context, we focus on improved understanding of design iterations. We are creating tools for modeling product development projects in order to predict the performance of product development organizations. In this paper, signal flow graphs are presented as a flexible tool for design process modeling. Illustrated using an industrial example, key project performance metrics including the probability distribution of lead time, and to identify key drivers of lead time.
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