minimize time-to-market. The gain from overlapping activities must be weighed against the delay from rework that results from …

varying uncertainty conditions, how the key features of overlapping and functional interaction affect the performance measures … not overlapping occurs, increasing functional interaction eventually leads to a trade-off between development time and … effort. Second, an Üearly-start-in-the-darkÝ approach of increasing overlapping with no functional interaction is inferior …