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Published on: July 24, 2016
What is wrong with the Mission Dependency Index for US federal infrastructure decisions?
Daniel A Eisenberg1, Aaron B Fish2, David L Alderson1
1Operations Research Department, Naval Postgraduate School, Monterey, California, USA.
Abstract:
The Mission Dependency Index (MDI) is a risk metric used by US military services and federal agencies for guiding operations, management, and funding decisions for facilities. Despite its broad adoption for guiding the expenditure of billions in federal funds, several studies on MDI suggest it may have flaws that limit its efficacy. We present a detailed technical analysis of MDI to show how its flaws impact infrastructure decisions. We present the MDI used by the US Navy and develop a critique of current methods. We identify six problems with MDI that stem from its interpretation, use, and mathematical formulation, and we provide examples demonstrating how these flaws can bias decisions. We provide recommendations to overcome flaws for infrastructure risk decision making but ultimately recommend the US government develop a new metric less susceptible to bias.
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