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Full-Text Articles in Operations and Supply Chain Management

Optimizing An F-16 Squadron Weekly Pilot Schedule For The Turkish Air Force, Murat Yavuz Mar 2010

Optimizing An F-16 Squadron Weekly Pilot Schedule For The Turkish Air Force, Murat Yavuz

Theses and Dissertations

Fighter squadrons in the Turkish Air Force build flight schedules for weekly periods. This process requires a great deal of time and does not seek optimality. Schedules are built with feasibility concerns. The Turkish Air Force doesn’t have an automated tool for flight scheduling. Many constraints including crew rest, number of sorties flown in a month, and duty currencies affect the schedule. Providing an automated scheduling tool may help schedulers save time for other squadron tasks including mission preparation, briefing, and debriefing. In this research, a heuristic approach to the problem is developed. Greedy Randomized Adaptive Search Procedures (GRASP) is …

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Delivery Time Variance Reduction In The Military Supply Chain, Preston L. Goodrich Mar 2010

Delivery Time Variance Reduction In The Military Supply Chain, Preston L. Goodrich

Theses and Dissertations

The United States Transportation Command (USTRANSCOM) is currently responsible for the daily shipment of supplies to forward operating bases throughout Afghanistan. Aerial cargo shipments are an important method used to quickly deliver items that are needed immediately. Currently, delivery times vary greatly. This variation causes a decrease in confidence for on-time deliveries. As a result, shipments are demanded early and often, causing bottlenecks in the transportation system and fewer on-time deliveries. This paper analyzes data gathered through the global transportation network to determine shipment characteristics that cause the greatest amount of delivery time variance. A simulation is developed using the …

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Classification Of Schedule Management Barriers Through Concept Mapping, Gregory W. Voth Mar 2009

Classification Of Schedule Management Barriers Through Concept Mapping, Gregory W. Voth

Theses and Dissertations

Barriers to adoption of schedule management processes are a matter of serious concern to the acquisition community. Schedule management has been widely accepted to contribute to the successful execution of complicated system development processes since the 1950s. However, studies of recent acquisition failures illustrate that over the last 15 years, there has been significant internal resistance to the adoption of schedule management processes. This exploratory effort used concept mapping to identify and classify the types of barriers existing in the Aeronautical Systems Center (ASC). A series of open-ended questions were posed to four experienced program managers in ASC. Units of …

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An Analysis Of Class Ii Supplies Requisitions In The Korean Army's Organizational Supply, Min Cheol Cho Mar 2009

An Analysis Of Class Ii Supplies Requisitions In The Korean Army's Organizational Supply, Min Cheol Cho

Theses and Dissertations

Timely supply support is critical to sustaining military readiness and operations. In order to improve user satisfaction and to ensure supply support in a timely manner, the supply management paradigm is changing from supplier (supporting unit) focused management to customer (combat unit) focused management. This research focuses on improvements to the requisition process in Organizational Supply to reduce Customer Wait Time (CWT) in the Korean Army Supply Chain (KASC). The causes leading to requisition problems in seven key areas of Organizational Supply were examined, and seventeen solutions for the problems were suggested. Solutions that can be executed immediately without cost …

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Forecasting Expeditionary Training For Company Grade Logistics Readiness Officers: A Delphi Study, Phillip Kirk Larson Mar 2008

Forecasting Expeditionary Training For Company Grade Logistics Readiness Officers: A Delphi Study, Phillip Kirk Larson

Theses and Dissertations

Since the development of the Expeditionary Airman concept and the start of combat operations in the Global War on Terrorism, the Logistics Readiness Officer’s (LRO) duty environment has expanded beyond traditional garrison-based duties. This expansion can arguably incorporate current topics of joint operations, irregular warfare, and cultural intelligence. The intent of this study is to determine what training, if any, future company grade LROs will require on these three topics. The research uses Delphi methodology, utilizing an expert panel of twelve LROs with experience in joint operations within a deployed environment, and interactions with foreign nationals. The study applies two …

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Afmc Customer Satisfaction Study At The Air Logistics Centers, Kelly D. Kendall Mar 2008

Afmc Customer Satisfaction Study At The Air Logistics Centers, Kelly D. Kendall

Theses and Dissertations

The purpose of this research was to determine Air Force Material Command’s (AFMCs) external customer issues and satisfaction levels as measured and compared by Air Logistics Center. Specifically, this project sought to answer how AFMC’s Air Logistics Centers were performing based on survey criteria chosen by AFMC’s A4 Logistics division. This research was guided by a previous Graduate Research Project (GRP) effort, which sought to determine how customer relationship management (CRM) initiatives varied in the private and public sectors, and to determine an appropriate means of capturing and measuring this type of data for AFMC. The research question was answered …

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Governance Structure Transforemation During Erp Implementations, Elise V. Strachan Mar 2008

Governance Structure Transforemation During Erp Implementations, Elise V. Strachan

Theses and Dissertations

The United States Air Force (USAF) has a number of initiatives underway to better support tomorrow’s Warfighter. As part of the Expeditionary Logistics for the 21st Century (eLog21) campaign, one of the most critical initiatives is the Expeditionary Combat Support System (ECSS). ECSS is the world’s largest enterprise resource planning (ERP) implementation and will completely transform USAF logistics operations. The benefits of an ERP include centrally-managed and integrated information sharing, while the many challenges include training future state operations and employing change management. An effective governance structure is essential in order for the USAF to realize the full benefits of …

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Analytical Techniques And The Air Force Logistics Readiness Officer, Bryan D. Main Mar 2008

Analytical Techniques And The Air Force Logistics Readiness Officer, Bryan D. Main

Theses and Dissertations

As the Air Force begins to implement the Expeditionary Combat Support System (ECSS), it is imperative that Air Force logisticians competently analyze logistics data. This exploratory study sought to determine which analytical skills are useful for Logistics Readiness Officers (LROs), as reported by active-duty LROs in grades O1-O5 and their supervisors. The research question was answered through a comprehensive literature review and the use of survey methodology. Over five hundred LROs and supervisors provided inputs. Analysis of survey responses found that Forecasting, Graphical Statistics and Descriptive Statistics are the analytical techniques valued most by both LROs and their supervisors. LROs …

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Process Time Refinement For Reusable Launch Vehicle Regeneration Modeling, Joseph A. Servidio Mar 2008

Process Time Refinement For Reusable Launch Vehicle Regeneration Modeling, Joseph A. Servidio

Theses and Dissertations

To sustain operational effectiveness, the Air Force has invested in the research and development of space-based technologies. Certain ongoing spacelift research efforts are focused on developing operationally responsive Reusable Military Launch Vehicles (RMLV) capable of launching payloads into orbit within hours of a tasking notification. Previous Air Force Research Laboratory-sponsored AFIT studies have resulted in the development of the MILEPOST discrete-event simulation model. This model has enabled the ability to analyze the impacts to responsiveness and manpower requirements given different RMLV design alternatives. The focus of this thesis is to improve the fidelity of the MILEPOST model by developing parametric …

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Inland Resupply Without A Road Or Runway: Airdrop Solutions Including High-Altitude Precision Systems, Derek L. Williamson Mar 2008

Inland Resupply Without A Road Or Runway: Airdrop Solutions Including High-Altitude Precision Systems, Derek L. Williamson

Theses and Dissertations

Given the variety of airdrop options now available, it may be difficult to determine the best mix of paradrop and aircraft types to employ, how the chosen types affect delivery weight capacity and what the least cost would be for the operation while still accomplishing the mission regarding drop zone weight, altitude, offset, and accuracy requirements. This research creates a planning tool to analyze these decisions and also identify trends regarding the best aircraft and paradrop types to use considering cost and capability in a strategic rather than tactical setting. This is accomplished through the formulation of a linear program …

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Internal Versus External For Small Weapons Systems, Joseph S. Elkins Mar 2007

Internal Versus External For Small Weapons Systems, Joseph S. Elkins

Theses and Dissertations

The acquisition method used to gain access to new technologies can heavily influence whether our war fighters have the required tools to fight increasing and constantly shifting global threats (Kessler and others, 2000). The purpose of this study was to investigate the process and results of internal laboratory development, testing and fielding of small weapons systems as compared to traditionally acquired systems which encourage customer pull and contractor development. This research provides insight into how Air Force Research Laboratory (AFRL) personnel choose an acquisition method, retain personnel capability, and maximize product capability. This study consolidates the opinions of subject matter …

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Sizing Mobility Readiness Spares Packages For Today's Warfighting Units, Christopher M. Beckley Mar 2007

Sizing Mobility Readiness Spares Packages For Today's Warfighting Units, Christopher M. Beckley

Theses and Dissertations

As the Air Force transforms from a garrisoned force into a light expeditionary force, one area for restructuring is the manner in which mobility readiness spares packages (MRSPs) are managed and stocked. For a war tasking, thirty days supply is typically deployed in a MRSP as it is assumed that there will be no re-supply for thirty days. Studies of combat operations from the past decade suggest that thirty days without re-supply is an outdated assumption. The objective of this thesis is to economically build a robust MRSP that is flexible enough to provide adequate support for a variety of …

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Class Viiia Materiel: What Problems Were Encountered Transiting Oif Air Transshipment Nodes?, Jessica L. Buck Mar 2007

Class Viiia Materiel: What Problems Were Encountered Transiting Oif Air Transshipment Nodes?, Jessica L. Buck

Theses and Dissertations

Medical cargo (Class VIIIA) is critical to the success of the United States military stationed across the globe; therefore, the military must successfully ship its Class VIIIA materiel to the Warfighter. The shipping and handling of the time and temperature sensitive Class VIIIA materiel is a complex process. Since the initial stages of Operation IRAQI FREEDOM (OIF) the medical field has complained about Class VIIIA materiel arriving unserviceable to the final destination. Unserviceable materiel includes items that expired over time and items that expired from exposure to temperatures outside of their allowable range. This thesis focused on one possible area …

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The Viability Of The Air Mobility Command Pure Pallet Program For Us Army Reparable Retrograde Shipments, William L. Jackson Jr. Mar 2007

The Viability Of The Air Mobility Command Pure Pallet Program For Us Army Reparable Retrograde Shipments, William L. Jackson Jr.

Theses and Dissertations

Last year, Congress approved $17.1 billion dollars, an increase of $4 billion dollars more than originally was requested by the Bush Administration, for US Army vehicles to be repaired or replaced (commonly referred to as reset) as a result of military operations in Iraq and Afghanistan. A large portion of the repair workload falls upon the Army depots in Anniston and Red River in Texarkana, Texas and must rely on the DOD transportation system for air and surface movement of retrograde cargo deemed serviceable and unserviceable to fill requisitions and backorders for entry into the national supply inventory. Headquarters Air …

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Commercial Firm Training Practices Versus Aerial Port Hazardous Cargo Frustration, Jill L. Maynard Mar 2007

Commercial Firm Training Practices Versus Aerial Port Hazardous Cargo Frustration, Jill L. Maynard

Theses and Dissertations

The military is dependent on commercial vendors to augment their supply system, to include hazardous materials. Hazardous materials must be packaged and labeled differently than general cargo for shipment in the defense transportation system. Previous research has shown there is an increase in frustration levels at Aerial Ports of Embarkation. The reasons for frustration range from minor discrepancies to improperly completed shipping documents. This research investigates if commercial companies are a cause of the frustration problems. A case study methodology was used to investigate training practices of companies that had frustrated hazardous cargo at either Charleston or Dover Aerial Ports. …

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Commander And User Perceptions Of The Army's Itv Architecture, Charles W. Ward Mar 2007

Commander And User Perceptions Of The Army's Itv Architecture, Charles W. Ward

Theses and Dissertations

The purpose of this research was to investigate relationships between some of the current, most widely used ITV systems and how they measured up to fulfilling the needs and requirements of the Army. Specifically, this research sought to determine if there were any differences between the various ITV systems and their ability to provide commanders and users with data and information capable of helping them accomplish their mission.

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A Multi-Objective Decision-Making Model For Resources Allocation In Humanitarian Relief, Seungbae Park Mar 2007

A Multi-Objective Decision-Making Model For Resources Allocation In Humanitarian Relief, Seungbae Park

Theses and Dissertations

This thesis addresses the critical resource allocation in the initial days of a disaster relief operation. One of the most important and essential components of relief operations is the allocation of scarce resources to accomplish the relief efforts. Every operation for disaster relief needs various critical resources whether they are personnel, equipment, supplies, or simply finances. Several research efforts for disaster relief have suggested methods to allocate scarce resources across a variety of competing objectives and programs in a disaster relief operation. Many of those efforts focused on optimizing a mathematical programming model subject to budget constraints. However, capturing the …

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An Adaptive Tabu Search Heuristic For The Location Routing Pickup And Delivery Problem With Time Windows With A Theater Distribution Application, Robert E. Burks Jr. Sep 2006

An Adaptive Tabu Search Heuristic For The Location Routing Pickup And Delivery Problem With Time Windows With A Theater Distribution Application, Robert E. Burks Jr.

Theses and Dissertations

The time constrained pickup and delivery problem (PDPTW) is a problem of finding a set of routes for a fleet of vehicles in order to satisfy a set of transportation requests. Each request represents a user-specified pickup and delivery location. The PDPTW may be used to model many problems in logistics and public transportation. The location routing problem (LRP) is an extension of the vehicle routing problem where the solution identifies the optimal location of the depots and provides the vehicle schedules and distribution routes. This dissertation seeks to blend the PDPTW and LRP areas of research and formulate a …

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Modeling A Reparable Supply Chain And Applying Cpfr Concepts, Sandra A. Mayhall Jun 2006

Modeling A Reparable Supply Chain And Applying Cpfr Concepts, Sandra A. Mayhall

Theses and Dissertations

The Air Force supply chain includes parts required to build, fix, or maintain aircraft delivered to the warfighter to carry out missions. Industry has shown that following Collaborative Planning, Forecasting, and Replenishment (CPFR) concepts, particularly reducing inventory through accurate demand forecasts, has increased profits in part by lowering the holding costs of inventory and increasing sales. This is analogous to the Air Force increasing aircraft availability. There is scant evidence that demand forecasts generated at any level in the Air Force are shared with the intent of coordinating replenishment. This thesis uses a simple discrete-event stochastic simulation model to show …

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Perceptions Of The Pure Pallet Program, Michael T. Dye Mar 2006

Perceptions Of The Pure Pallet Program, Michael T. Dye

Theses and Dissertations

In coordination with USCENTCOM, USTRANSCOM, and the DLA, AMC implements the pure pallet program to improve warfighter support. The cornerstone of the pure pallet program rests upon the consolidation of materiel early in the supply-chain by constructing end-user specific pallets. This research utilized a web-based survey to measure the perceptions of the air transportation specialists and logistics readiness officers who are implementing the program on behalf of the Air Force. The results indicate that the pure pallet program is achieving its intended results; however, there is a perception problem. Recommendations center on educating personnel on the importance of suboptimization avoidance …

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Understanding Innovation Adoption In The Air Force, Morgan J. Evans Mar 2006

Understanding Innovation Adoption In The Air Force, Morgan J. Evans

Theses and Dissertations

Innovation adoption has become a critical issue for organizations in both the public and private sectors. The search for competitive advantage has led to the recognition that innovation is a vital ingredient for an organization's survival and profitability in this information age. The United States Air Force is seeking to adapt to this new information age by transforming its business processes in order to sustain its competitive advantage as the world's most respected air force. Adopting innovations and integrating new or improved technologies, capabilities, concepts, and processes into Air Force planning and acquisition activities, organizations, and operations are goals of …

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An Exploratory Case Study Of Information-Sharing And Collaboration Within Air Force Supply Chain Management, Wendy S. Kierpiec Mar 2006

An Exploratory Case Study Of Information-Sharing And Collaboration Within Air Force Supply Chain Management, Wendy S. Kierpiec

Theses and Dissertations

This research sought to identify key elements of the Air Force supply chain as it relates to industry, determine how techniques of information-sharing and collaboration are used to make Air Force Supply Chain decisions, and examine how the resulting impacts on operational readiness may be measured. A multiple case study research design was used to investigate the application of information-sharing and collaboration in two distinct Air Force supply chains. Cross-case comparative analysis of the supply chains supporting the PTO shafts on the F-15 engine and the T-38 engine evaluated each supply chain's characteristics and levels of information-sharing and collaboration. The …

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Factors Affecting The Transfer Of Basic Combat Skills Training In The Air Force, Rodney E. Mccraine Mar 2006

Factors Affecting The Transfer Of Basic Combat Skills Training In The Air Force, Rodney E. Mccraine

Theses and Dissertations

During Operations ENDURING FREEDOM (OEF) and IRAQI FREEDOM (OIF), many Airmen in support career fields were deployed to hostile environments like Afghanistan and Iraq. Deployments of this nature are a departure from normal Air Force operations where support personnel are normally far from the front lines of battle. The purpose of this research was to understand the factors that affect the transfer of basic combat skills training from the classroom to the battlefield. Specifically, this thesis sought to answer five research questions addressing the current combat skills training requirements, the perceived training transfer of basic combat skills, the factors that …

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Algebra Of Tankers, Margaret M. Romero Mar 2006

Algebra Of Tankers, Margaret M. Romero

Theses and Dissertations

The Air Force's aerial refueling tanker aircraft provide essential support for deployment and employment of combat and combat support aircraft, by extending their endurance and enhancing fighting efficiency. As the lead command for air refuelers, Air Mobility Command (AMC) must frequently examine the capability of current and proposed tanker fleets to meet mission requirements due to limited tanker resources. Analysts in AMC primarily use the Combined Mating and Ranging Plans System to provide actual tanker/receiver aircraft schedules and flight plans that take into account numerous system constraints. However, this tool can take weeks to run. Even recently developed quick look …

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Building A Consensus Forecast For Crude Oil Prices, Kenneth W. Burke Mar 2006

Building A Consensus Forecast For Crude Oil Prices, Kenneth W. Burke

Theses and Dissertations

Skyrocketing fuel prices have stressed the Department of Defense's budget in recent years. In 2001 the DoD spent $4.7 Billion on fuel with the Air Force consuming $2.7 Billion. These figures have grown over due to these increases as well as the increased flying ours to support the Global War On Terror. In fact, the Fiscal Year 2007 budget has already been increased by $1.1 billion, or 1% of the total budget, to accommodate the increased price of fuel. Current forecasts of this resource have yielded poor results, impairing the DoD's ability to budget this critical expense. Further because the …

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Hazardous Material Cargo Frustration At Military Aerial Ports Of Embarkation, Niel E. Christensen Mar 2006

Hazardous Material Cargo Frustration At Military Aerial Ports Of Embarkation, Niel E. Christensen

Theses and Dissertations

Since military units often require critical hazardous materials in an expedited manner, identifying choke points within the supply chain is necessary to improve logistic support to front line forces. Hazardous materials are some of the most critical assets for the war fighter, as well as the most restrictive and often most time consuming for transportation. This research quantifies the extent that vendor and depot supplied cargo is being delayed at Aerial Ports of Embarkation. By looking at frustrated hazardous material at Charleston Air Force Base, South Carolina and Dover Air Force Base, Delaware, a case study methodology is used to …

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Improving Maintenance Data Collection Via Point-Of-Maintenance (Pomx) Implementation, William D. Cone Mar 2006

Improving Maintenance Data Collection Via Point-Of-Maintenance (Pomx) Implementation, William D. Cone

Theses and Dissertations

Maintenance data collection is an integral part of flightline aircraft maintenance. Historically, this data was input via traditional keyboard data entry methods at a computer terminal. These terminals are typically located in the aircraft maintenance unit (AMU) facility, away from where the actual maintenance is being performed. In contrast to the traditional approach, the Point-of-Maintenance system (POMX) seeks to reduce the data entry burden while increasing data accuracy through the use of E-Tools such as ruggedized laptop computers and handheld portable maintenance aids (PMAs). POMX enables data entry at the aircraft or other maintenance location via wireless local area network …

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Access Based Cost Estimation For Beddown Analysis, Jasper E. Pennington Mar 2006

Access Based Cost Estimation For Beddown Analysis, Jasper E. Pennington

Theses and Dissertations

The purpose of this research is to develop an automated web-enabled beddown estimation application for Air Mobility Command in order to increase the effectiveness and enhance the robustness of beddown estimates. This includes generating rough order of magnitude cost estimates for the potential beddown of air mobility assets as well as serving as a centralized data warehouse for current and future scenarios. The application developed is intended to provide the analyst with the maximum amount of both quantitative and qualitative input for any potential decision to quickly identify infrastructure requirement shortfalls and associated costs to satisfy those shortfalls. The application …

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Headquarters Air Force Material Command Customer Relationship Study, Damelsa D. White Mar 2006

Headquarters Air Force Material Command Customer Relationship Study, Damelsa D. White

Theses and Dissertations

Because of the lack of product and price differentiation, many organizations consider Customer Relationship Management (CRM) their primary focus. CRM uses information about each customer to make each customer more valuable to the organization, and the organization more valuable to the customer, while decreasing the cost of servicing the customer. However, an organization cannot conform to customer specifications if the needs of the customers as well as what the customer values is not known. As a result, Headquarters (HQ) Air Force Materiel Command (AFMC) is taking the initiative to gain an understanding of their customers. The purpose of this study …

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Air Force Jp-8 Fuel Distribution System: A Statistical Analysis To Determine Where And When To Sample, Eric J. Heath Mar 2005

Air Force Jp-8 Fuel Distribution System: A Statistical Analysis To Determine Where And When To Sample, Eric J. Heath

Theses and Dissertations

The Air Force Petroleum Office at Wright-Patterson Air Force Base, Ohio collects JP-8 sampling data, but this data doesn't undergo analysis to determine the health of the base-level JP-8 fuel distribution system. Commanders possess no known confidence level when assessing base-level fuel health. Therefore, the objective of this research is to assess Air Force base-level fuel sampling data to determine the base-level sampling point that ensures a quality and healthy product at the aircraft. Also, this research seeks to identify how often correlation sampling should take place. Sample test pass rates are analyzed from three locations, receipt, storage, and vehicles/aircraft, …

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