Assessing changeability under uncertain exogenous disturbance

作者：Niese Nathan D^*; Singer David J

来源：Research in Engineering Design, 2014, 25(3): 241-258.

DOI：10.1007/s00163-014-0177-5

• Markov decision process
• Design metrics
• Changeability

This paper introduces metrics derived from application of a Markov decision process to evaluate a design's changeability. Changeability is known to improve product performance if conscientious early-stage design decisions are matched with structured management of the system in response to exogenous disturbances-shifts which may be environmental, market, technological, and political in nature. Included in the paper is a brief discussion of changeability's role in ensuring strategic product performance as well as a review of past metrics developed, highlighting the open design challenge to more fully capture the managerial and process dimensions inherent to changeability. The proposed metrics are featured in a case study related to the ballast water system of an ocean-going vessel. The result of such application is greater context for the value changeability offers and an improved understanding of the resources required to manage uncertainty over the product's life cycle.

• 出版日期2014-7