Simulated Operating Concepts for WIOM Implementation

Abstract

Naval Supply Systems Command Weapon Systems Support (NAVSUP WSS) serves as the Navy's inventory control point, managing approximately 375,000 line items. Constrained by funding, NAVSUP WSS uses the Wholesale Inventory Optimization Model (WIOM), a mixed-integer linear program developed by Naval Postgraduate School faculty, to maximize customer service. Since demand distributions for different parts change over time, NAVSUP WSS updates the inputs to WIOM and reruns it quarterly. However, large changes to the solution create an administrative burden. To deal with this problem, referred to as churn, WIOM has a persistence parameter that can discourage change from one run to the next, but it is inherently at odds with customer service performance.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2018
Accession Number
AD1052908

Entities

People

  • Sean M. Teter

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Commerce
  • Customer Services
  • Data Sets
  • Experimental Design
  • Inventory
  • Inventory Control
  • Lead Time
  • Linear Programming
  • Materials
  • Operations Research
  • Optimization
  • Periodic Variations
  • Probability Distributions
  • Random Variables
  • Simulations
  • Steady State
  • Weapon Systems

Fields of Study

  • Computer science

Readers

  • Government Contracting/Procurement.
  • Materials Science.
  • Operations Research