A fundamental problem in managing product development is the optimal timing, frequency, and fidelity of sequential 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...

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 advantage of the potential for learning between tests, thus...

Shorter development lead times, other things being equal, contribute to competitive advantages in many of today's industries where market needs and available technologies are difficult to predict, rapidly changing or diversified and where novelty is highly valued in the market. In this paper, we...

Shorter development lead times, other things being equal, contribute to competitive advantages in many of today's industries where market needs and available technologies are difficult to predict, rapidly changing or diversified, where novelty is highly valued in the market, and where...