Strategic management of component obsolescence using constraint-driven design refresh planning
by Raymond S. Nelson III; Peter Sandborn
International Journal of Product Lifecycle Management (IJPLM), Vol. 6, No. 2, 2012

Abstract: Technology obsolescence also known as diminishing manufacturing sources and material shortages (DMSMS) is a significant problem for systems whose operational life is much longer than the procurement lifetimes of their constitute components. The most severely affected systems are sustainment-dominated, which means their long-term sustainment (lifecycle) costs significantly exceed the procurement cost of the system. Unlike high-volume commercial products, these sustainment-dominated systems may require design refreshes to simply remain manufacturable and supportable. Design refresh planning (DRP) is a strategic method for reducing the lifecycle cost impact of DMSMS and increasing system availability. The objective of DRP is to determine when a design refresh should occur (or what the frequency of refreshes should be) and how to manage the system components that are obsolete or soon to be obsolete at the design refreshes. This paper describes the formulation and implementation of constraints in the DRP process for systems impacted by DMSMS type obsolescence and proposes a method of transforming an implicit system limitation into an explicit DRP constraint. These constraints can reflect technology roadmap requirements, obsolescence management realities, logistics limitations, budget limitations and management policy.

Online publication date: Sat, 16-Aug-2014

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Product Lifecycle Management (IJPLM):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email