There are many types of products and systems that have lifecycles longer than their constituent parts (specifically COTS – Commercial Off The Shelf parts). These lifecycle mismatches often result in high sustainment* costs for long field life systems (e.g., avionics, military systems, etc.) due to part obsolescence problems. While there are a number of ways to mitigate obsolescence, e.g., lifetime buys, aftermarket sources, etc., ultimately systems are redesigned one or more times during their lives to update functionality and manage obsolescence. Unfortunately, redesign of sustainment-dominated systems like those mentioned above often entails very large non-recurring engineering…
Author: Singh, Pameet
Source: University of Maryland
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