What are we waiting for? Customer wait time, fill-rate, and Marine Corps equipment operational availability
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Authors
Fincher, Jason H.
Subjects
Fill-rate
customer wait time
operational availability
days dead-lined
Ground Combat Support System—Marine Corps
consumable repair parts
customer wait time
operational availability
days dead-lined
Ground Combat Support System—Marine Corps
consumable repair parts
Advisors
Doerr, Kenneth
Seagren, Chad
Date of Issue
2016-12
Date
Dec-16
Publisher
Monterey, California: Naval Postgraduate School
Language
Abstract
This research explores the effects of customer wait time (CWT) and fill-rate on equipment operational availability (AO) using consumable repair parts requisition data from Marine Corps mechanized units to determine 1) the relationship between CWT, fill-rate, and AO; and 2) if the system's reliance on fill-rate as the primary indicator of supply chain performance adversely affects AO. This study also captures observations on the quality and scope of Ground Combat Support System—Marine Corps (GCSS-MC) data. Analysis methods include linear regression techniques and a categorization model developed specifically to compare supply chain outcomes reported by CWT versus those reported by fill-rate. This study concludes that both fill-rate and CWT are important measures, but neither is sufficient as a single indicator of supply chain performance. The reliance on fill-rate alone currently results in misreporting of supply chain outcomes between 20–40% of the time. These findings support policies that balance inventory performance with supply chain responsiveness, focusing efforts on items with long CWTs. The data also suggests logical CWT standards that differ from current policy. The scope and quality of the GCSS-MC data indicate that data collection processes could be further automated and focused on the drivers of days-dead-lined.
Type
Thesis
Description
Series/Report No
Department
Graduate School of Business and Public Policy (GSBPP)
Organization
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NPS Report Number
Sponsors
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Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.