testing activities that are carried out to evaluate novel product concepts and designs. In this paper, we develop a … mathematical model that treats testing as an activity that generates information about technical and customer-need related problems …. An analysis of the model results in several important findings. First, optimal testing strategies need to balance the …

An important managerial problem in product design in the extent to which testing activities are carried out in parallel … or in series. Parallel testing has the advantage of proceeding more rapidly than serial testing but does not take … the form of a dynamic program and derive the optimal testing strategy (or mix of parallel and serial testing) that …