Parallel and Sequential Testing of Design Alternatives
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 resulting in a larger number of tests. We model this trade-off in the form of a dynamic program and derive the optimal testing strategy (or mix of parallel and serial testing) that minimizes both the total cost and time of testing. We derive the optimal testing strategy as a function of testing cost, prior knowledge, and testing lead time. Using information theory to measure the test efficiency, we further show that in the case of imperfect testing (due to noise or simulated test conditions), the attractiveness of parallel strategies decreases. Finally, we analyze the relationship between testing strategies and the structure of design hierarchy. We show that a key benefit of modular product architecture lies in the reduction of testing cost.
Volume (Year): 47 (2001)
Issue (Month): 5 (May)
|Contact details of provider:|| Postal: 7240 Parkway Drive, Suite 300, Hanover, MD 21076 USA|
Web page: http://www.informs.org/
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Robert P. Smith & Steven D. Eppinger, 1997. "A Predictive Model of Sequential Iteration in Engineering Design," Management Science, INFORMS, vol. 43(8), pages 1104-1120, August.
- Weitzman, Martin L, 1979.
"Optimal Search for the Best Alternative,"
Econometric Society, vol. 47(3), pages 641-654, May.
- M. L. Weitzman, 1978. "Optimal Search for the Best Alternative," Working papers 214, Massachusetts Institute of Technology (MIT), Department of Economics.
- Christian Terwiesch & Christoph H. Loch, 1999. "Measuring the Effectiveness of Overlapping Development Activities," Management Science, INFORMS, vol. 45(4), pages 455-465, April.
- Armen A. Alchian, 1950. "Uncertainty, Evolution, and Economic Theory," Journal of Political Economy, University of Chicago Press, vol. 58, pages 211-211.
- Marco Iansiti, 2000. "How the Incumbent Can Win: Managing Technological Transitions in the Semiconductor Industry," Management Science, INFORMS, vol. 46(2), pages 169-185, February.
- Roger E. Bohn, 1995. "Noise and Learning in Semiconductor Manufacturing," Management Science, INFORMS, vol. 41(1), pages 31-42, January.
- Thomke, Stefan & von Hippel, Eric & Franke, Roland, 1998. "Modes of experimentation: an innovation process--and competitive--variable," Research Policy, Elsevier, vol. 27(3), pages 315-332, July.
- Christoph H. Loch & Christian Terwiesch, 1998. "Communication and Uncertainty in Concurrent Engineering," Management Science, INFORMS, vol. 44(8), pages 1032-1048, August.
- Stefan H. Thomke, 1998. "Managing Experimentation in the Design of New Products," Management Science, INFORMS, vol. 44(6), pages 743-762, June.
- Ulrich, Karl, 1995. "The role of product architecture in the manufacturing firm," Research Policy, Elsevier, vol. 24(3), pages 419-440, May.
- Clark, Kim B., 1985. "The interaction of design hierarchies and market concepts in technological evolution," Research Policy, Elsevier, vol. 14(5), pages 235-251, October. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:inm:ormnsc:v:47:y:2001:i:5:p:663-678. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Mirko Janc)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.