Operations and Supply Chain Management | Open Access Articles

Interview With Charles Zeynel, Dr. Joseph M. Juran Collection

'An Immigrant's Gift': Interviews about the Life and Impact of Dr. Joseph M. Juran

No abstract provided.

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Interview With Kent Sterett, Dr. Joseph M. Juran Collection

'An Immigrant's Gift': Interviews about the Life and Impact of Dr. Joseph M. Juran

No abstract provided.

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Interview With Minerva Goldberg, Dr. Joseph M. Juran Collection

'An Immigrant's Gift': Interviews about the Life and Impact of Dr. Joseph M. Juran

No abstract provided.

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Interview With Lawrence Appley, Dr. Joseph M. Juran Collection

'An Immigrant's Gift': Interviews about the Life and Impact of Dr. Joseph M. Juran

No abstract provided.

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Preference By Sows For A Partially Enclosed Farrowing Crate, P. A. Phillips, D. Fraser, B. K. Thompson

Housing and Confinement of Farm Animals Collection

A preference testing apparatus was designed to give sows continuous access to three farrowing crates with different degrees of visual enclosure. A ‘fully enclosed' crate had solid black panels on the sides and top of the crate, a ‘solid-sided’ crate had the side panels only and an ‘open crate’ had no solid panels over the crate's tubular framework. The crates radiated from a central area sufficient for sows to enter or leave any crate freely. Video recording was used to determine sow position from 3 days before to 6 days after farrowing. The results indicated that younger sows (second or …

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The Manufacturing Contribution To Innovation, Arnoud De Meyer

Research Collection Lee Kong Chian School Of Business

The description of the contribution of manufacturing to the innovation process is often limited to the task of providing the necessary information to enable the development function to create a design which is easy to manufacture, and to be instrumental in the fast ramp-up of the production process. Though these are important tasks, it is argued in this paper that there is a third aspect of manufacturing’s contribution to innovation, namely the creation of a manufacturing system which is favorable to product innovation. This goes far beyond the design of an appropriate production process, but requires the creation of a …

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An Analysis Of Fixed Wing Tactical Airlifter Characteristics Using An Intra-Theater Airlift Computer Model, Paul Pappas

Theses and Dissertations

This study used computer simulation to identify which tactical airlifter characteristics most significantly affected tactical airlift capability in a given scenario. The Generalized Air Mobility model was used to simulate a tactical airlift system. Aircraft characteristics within the model were grouped into six variables. A 2(6) two level full factorial experimental design was used to assess the effect of changes in aircraft characteristics on the effectiveness of the tactical airlift system. Yates algorithm was used to identify significant terms based upon the results of the factorial experiment. These significant terms were used to develop a parsimonious regression model that represented …

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An Investigation Of Project Management Techniques For Scheduling Raaf Depot Level Maintenance, Kerry M. Bayley

Theses and Dissertations

This research investigates scheduling performances of commercial project management software. It is based on difficulties that the Royal Australian Air Force experienced in evaluating microcomputer-based packages in maintenance task scheduling of aircraft undergoing Depot Level Maintenance. A literature review found only one paper quantifying commercial software performances. No standard performance metrics or test data were found. Several packages were evaluated using a common set of 110 single-project resource- constrained networks. The performance measure used was closeness to optimally minimum Total Durations. No package performed best on all problems. On average, the best produced schedules 5.2% longer than optimal, with 95 …

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A Guide For The Consideration Of Composite Material Impacts On Airframe Costs, Jeffrey L. Isom

Theses and Dissertations

This study provides a guide to cost analysts who must consider the impact of composite materials on airframe costs. A literature review was conducted to determine the availability of cost models which incorporate the effect of composites on cost. A number of models are available, but no individual model was found that is applicable for every situation. In order to provide a baseline upon which analysts can compare model results as well as provide guidance in selecting cost drivers, a Delphi survey was conducted. Questionnaire results indicate that composite weight (as a percentage of total weight), composite part complexity, percentage …

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A Model For Estimating Aircraft Recoverable Spares Annual Costs, Phillip L. Redding

Theses and Dissertations

This thesis covers three objectives: (1) develop a background reference document concerning recoverable spares cost estimating; (2) evaluate a representative sample of existing spares cost models; and (3) use aircraft physical and performance characteristics to develop a model for estimating annual replenishment spares cost. A condemnations cost estimating relationship (CER) was developed first and then both a CER and spreadsheet generated factors which related condemnations to replenishment spares costs were developed. For the condemnations CER, only logarithmic transformations provided statistically acceptable results, and even these models exhibited wide prediction intervals due to large amount of variability in the CER databases …

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An Expert System Job Aid For Users Of The Automated Scheduling Module, Kevin A. Gore

Theses and Dissertations

This research developed an Expert System for novice aircraft maintenance schedulers (AFSC: 392XX) with little experience using the Automated Scheduling Module (ASM). First, an in-depth literature review was completed. Next, personal interviews were conducted with an ASM expert and other 392XX personnel. Prototypes using VP-Expert and KnowledgePro shells were created. The knowledgePro shell was selected to create the ASM Job Aid, combining the knowledge of the expert and AFM 66-279. The program was verified, validated, and favorably reviewed by 392XX personnel. Recommendations include: The Air Force Logistics Management Center (AFLMC) examine the ASM Job AId and develop a Performance Support …

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An Evaluation Of Logistics Support For F-16 Aircraft Owned By Foreign Countries, Paul J. Lyons

Theses and Dissertations

The purpose of this thesis was to examine the logistics support provided by the United States Air Force (USAF) for F-16 aircraft owned by foreign countries. The research drew from historical trends and personal experiences to examine the ability of the U.S. to provide logistics support for F-16 aircraft owned by U.S. allies. The study found that timely, efficient support of FMS customers possessing F-16 aircraft does not appear to be a principal concern of the USAF logistics system. Complexity of processes, untimely responses, and failure to consider customer needs are common failings on the part of the USAF.

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Analysis Of A Waste Minimization Program For Nonhazardous Solid Wastes Utilizing Source Reduction And Recycling Techniques And Its Application To Air Force Installations, Brian F. Mcdermott

Theses and Dissertations

This nation has fallen victim to its own excessive behavior and has created an overabundance of trash, referred to in this thesis as Nonhazardous Solid Waste (NHSW). This situation has created environmental and health problems that can no longer be ignored. All types of communities are affected including Air Force installations. Unfortunately, the AF does not currently have a long term waste management policy or program regarding NHSW minimization. This research concentrates on the application of a NHSW minimization program for AF installations using the two most preferred methods, source reduction and recycling. The development of a comprehensive waste minimization …

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War Reserve Materiel Prepositioning Its History, Its Significance, And Its Future, Jack E. King Jr.

Theses and Dissertations

This study puts USAF War Reserve Materiel (WRM) into perspective. Its purpose is to serve as an introduction for those who wish to further their knowledge of USAF WRM prepositioning. To fully understand the relevant issues concerning the placement of critical European WRM stockpiles, several areas of research are encompassed in this review. An historical analysis of US military logistics is provided. Then, an overview of current, world-wide events taking shape around the world, with particular emphasis given to their effects on US decision-making strategies, is accompanied by a synopsis of both US and Soviet military doctrine.

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An Analysis Of Measures Used To Evaluate The Air Force Critical Item Program, Robert R. Lee

Theses and Dissertations

The purpose of this study was to evaluate the potential of two measures, percent defects and cycle time, to measure the overall performance of the Air Force Critical Item Program (CIP). The need for such study was generated from the current absence of any measurement system available to evaluate the CIP. This research used these two measures with actual data, evaluated the correlation between aircraft availability and percent defects and cycle time, and analyzed management perceptions addressing the usefulness of these measures for field use. Performance of this analysis resulted in support for these measures by over two thirds of …

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Inaccurate Data Entry Into The Air Force Maintenance Data Collection System, Jon R. Determan

Theses and Dissertations

This research investigated the data collection environment under the Core Automated Maintenance System (CAMS), a computerized information system used in the Air Force's aircraft maintenance complexes. The research measured maintenance personnel's perception of the nature, extent, and causes of data inaccuracies occurring in the CAMS data collection environment. The nature was differentiated as being either intentional or accidental. Maintenance personnel felt that difficulty in entering information into CAMS accounted for the largest percentage of intentional errors and that insufficient training on CAMS accounted for the largest percentage of accidental errors. A comparison of this research to the results of earlier …

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Analysis Of Department Of Defense Organic Depot Maintenance Capacity Management And Facility Utilization Factors, Marlies Dewoody

Theses and Dissertations

This study investigated the effects of mandated depot capacity utilization rates on throughput, inventory, and operating expense. The measures of merit analyzed were work in process inventories, leadtime, and throughput. Since the services do not use a common computer system to track/compute capacity data, a computer simulation provided the data used to meet the research objectives. The simulation modeled a serially interdependent system subject to statistical fluctuations. Variability in the system was reduced by reducing the spread around the processing time mean. Buffer inventories were placed in front of each process to protect the process from variability. Constrained systems were …

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A Meta-Analysis Of Pilot Selection Tests: Success And Performance In Pilot Training, William E. Lynch

Theses and Dissertations

The purpose of this study was to determine if the characteristics measured by the Air Force Officer Qualifying Test Pilot Composite and Navy/Marine Flight Aptitude Rating were significantly correlated to the successful completion of flight training. Meta-analysis was used to: calculate the mean weighted average correlation, and correct for sampling error, error of measurement, restriction of range, and dichotomization. Over 200 studies were considered for the meta-analysis. The results indicate that both the uncorrected and fully corrected weighted mean correlations for a group of nine Air Force studies were statistically significant (p < .0001). The partially corrected (sampling error and dichotomization) correlation for a group of eight Navy studies was also statistically significant (p < .03), while the uncorrected weighted mean correlation was not significant (p > .05). There was no significant difference between the …

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A Comparison Of The All Mobile Tactical Air Force And The Logistics Composite Simulation Models, David P. Leonhardt

Theses and Dissertations

LCOM with respect to the number of sorties generated and the number of maintenance manpower hours utilized during a 60-day scenario. A 2(n) factorial experimental design was used for the study with an n-value of three. Three variables, the number of LRUs available in the supply pool, the number of personnel available for maintenance tasks, and the quantity of AGE available on the base, were allowed to take on either a constrained or unconstrained value in the study. A distribution of the differences in each output variable between the two models was developed and a confidence interval of the distribution …

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An Analysis Of The Defense Logistics Agency Medical Supplies Requisition Process, Sandra H. Mchugh

Theses and Dissertations

Defense reorganization initiatives coupled with demands for significant cost reductions exerted tremendous operating pressures on the Defense Logistics Agency (DLA). DLA senior management focused on process management as an approach to simultaneously assure appropriate levels of customer service and cost. The first step in this approach was to fully understand current management processes. As such, the thesis objective was to document the medical supplies order cycle process by tracing the path of information through the logistics pipeline. Detailed flowcharts and narrative descriptions were employed to demonstrate the activities of those organizations responsible for processing Air Force orders for medical supplies. …

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Combat Service Support And The Total Force, Lewis A. Germann

Theses and Dissertations

This study determined the minimum essential active Army Total Force Combat Service Support structure required for Contingency Force (CF) operations to provide the Army with the necessary organization for a response to a national crisis. A model called MICROFASTALS, used in combination with LOTUS 1-2-3 software, developed these forces. A literature search provided background information describing: the history of the Total Force Policy to the present; how the Department of Defense and the Army was organized to meet the Total Force initiatives, including an in depth description of the Army CSS structure; the latest National Security and Military Strategy that …

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An Evaluation Of The Implementation Of Two-Levels Of Maintenance At Strategic Air Command Intercontinental Ballistic Missile Bases, Alan H. Russell

Theses and Dissertations

As a result of the 1979 Defense Management Review, Headquarters, Strategic Air Command has initiated programs of alternative levels of maintenance in order to trim excess costs. This study investigates the suitability of the SAC program which changed selected base-level strategic missile maintenance tasks from three to two-levels of maintenance. Using an opinion oriented questionnaire, this research surveyed a sample of missile maintenance personnel on their perceptions of the SAC program which implemented an alternative to intermediate-level maintenance. Analysis of survey results show respondents tended to believe the SAC program has not added benefit to their mission effectiveness. Other studies …

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A Study Of The Air Force's Exception Management Process: Its Effect On Customer Service And Order Processing, David W. Jones

Theses and Dissertations

The purpose of this study was two-fold; the first goal was to determine what the SBSS order processing is, and secondly to determine the effect the current method of ECC management has on the SBSS order processing cycle and the level of customer service rendered by base supply. The research revealed that exception management is a crucial component of a successful order processing function. Further, it was established that the level of customer satisfaction experienced is greatly dependent upon good order processing. Research further indicated flaws in the current method of ECC management and recommended further actions to correct the …

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The Disaster™ Scheduling System: A Review And Case Analysis, Jefferson L. Severs

Theses and Dissertations

This research examined the capabilities of a new scheduling system, called DISASTER, based on the theory of constraints. Use of this system may be beneficial to the Department of Defense, particularly Air Force Logistics Command maintenance organizations. The research begins with a review of literature pertaining to manufacturing planning and control systems, including material requirements planning (MRP), manufacturing resource planning (MRP II), AFLC's Depot Maintenance Management Information System (DMMIS), just-in-time (JIT) manufacturing, and the theory of constraints (drum-buffer-rope scheduling) . The research then examined the logic and operation of the DISASTER system. Next, the research examined the implementation of DISASTER …

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A Method For The Optimal Disposition Of Surplus Air Force Motor Vehicles, Valerie A. Tredway

Theses and Dissertations

This study developed a disposition method to enable major commands to increase the value of their vehicle fleets by optimally replacing less valuable fleet vehicles with more valuable surplus vehicles. The value of an optimal vehicle disposition method is especially significant in light of the decline in the U.S. Department of Defense (DoD) budget and base closures scheduled through fiscal year 1994. The Air Force currently spends approximately $240 million per year for vehicle replacement to maintain its motor vehicle fleet. It is advantageous, therefore, to consider replacing older vehicles in the fleet with newer surplus vehicles made available through …

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A Computer Simulation Analysis Of The Usaf Vehicle Allowance/ Authorization Process, Charles T. Butler

Theses and Dissertations

This research examined the effects of the incorporation of Electronic Data Interchange (EDI) on the USAF vehicle allowance/authorization process. The study utilized a computer simulation model to mimic the flow of the AF form 601, Equipment Action Request, as it is submitted at base level and coordinated through the MAJCOM and WR-ALC. The hypothesis was that the allowance/authorization cycle time could be made shorter by transmitting the information contained on the form 601 electronically, rather than mailing the form to each coordinating agency. In order to compare the process with and without the use of EDI, two computer simulation models …

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Potential Improvements In The Logistics Acquisition Process Of The European Fighter Aircraft: An Italian Perspective, Pierluigi Ciardelli

Theses and Dissertations

This thesis was aimed at developing recommendations to improve the implementation of the Integrated Logistics Support (ILS) concept and the application of the Logistics Support Analysis (LSA) tasks during the current acquisition of the European Fighter Aircraft (EFA) by the Italian Air Force (IAF). The research was conducted through a wide overview of the ILS philosophy and implementation, specifically focusing on the USAF experience in acquisition logistics and the lessons learned from the European TORNADO program in the area of support. Although a successful model ready to be introduced in the IAF was not found, some recommendations for the EFA …

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Performance Assessment Of The Spare Parts For The Activation Of Relocated Systems (Spares) Forecasting Model, Paul L. Bunker

Theses and Dissertations

This research assessed the performance of the Spare Parts for the Activation of Relocated Systems (SPARES) forecast model used to develop the spares requirements forecast for the August 1988 activation of the 174TFW at Syracuse ANGB NY. SPARES was developed by the Air Force Logistics Management Center in August 1988 to replace existing Standard Base Supply System (SBSS) forecasting procedures. SPARES uses mission change data (MCD) from five similar-size source bases to determine the probability of future demand (PFD) for items at the gaining base. Before implementing SPARES in the SBSS, forecast performance must be measured and model weaknesses identified …

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Stockless Medical Materials Management: Applications For The United States Air Force Medical Service, Thomas M. Harkenrider

Theses and Dissertations

The purpose of this research was to study stockless materials management in an effort to determine if it could improve the Air Force Medical Service's supply operations. The main result of this study was a decision support system (DSS) that would evaluate potential savings if stockless materials management were implemented in an Air Force medical treatment facility (MTF). In the process of developing the DSS, stockless materials management was studied in civilian hospitals that had previously converted to stockless materials management. Data included facility bed size, annual medical supply purchases, pre and post stockless medical supply full time equivalents (FTEs), …

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Ramp-To-Ramp Transfers Of Foreign Military Sales Aircraft And Related Logistics Problems, Lewis J. Edwards

Theses and Dissertations

This thesis examined the concept of 'ramp-to-ramp' aircraft transfers in the Foreign Military Sales Program. Avoidance of storage costs was the major benefit of this concept, and the lack of support equipment and spare parts are the major drawbacks. Planning and coordination, logistical problems, and conflicting USAF regulations, programs, and policies were examined to determine the effect each had on the 'ramp-to-ramp' transfer of the last remaining F-5 aircraft to FMS countries. A study of background papers, electronic messages, minutes from meetings, and published articles was used to develop an understanding of the organization and planning process involved with the …

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Full-Text Articles in Operations and Supply Chain Management

Interview With Charles Zeynel, Dr. Joseph M. Juran Collection

'An Immigrant's Gift': Interviews about the Life and Impact of Dr. Joseph M. Juran

Interview With Kent Sterett, Dr. Joseph M. Juran Collection

'An Immigrant's Gift': Interviews about the Life and Impact of Dr. Joseph M. Juran

Interview With Minerva Goldberg, Dr. Joseph M. Juran Collection

'An Immigrant's Gift': Interviews about the Life and Impact of Dr. Joseph M. Juran

Interview With Lawrence Appley, Dr. Joseph M. Juran Collection

'An Immigrant's Gift': Interviews about the Life and Impact of Dr. Joseph M. Juran

Preference By Sows For A Partially Enclosed Farrowing Crate, P. A. Phillips, D. Fraser, B. K. Thompson

Housing and Confinement of Farm Animals Collection

The Manufacturing Contribution To Innovation, Arnoud De Meyer

Research Collection Lee Kong Chian School Of Business

An Analysis Of Fixed Wing Tactical Airlifter Characteristics Using An Intra-Theater Airlift Computer Model, Paul Pappas

Theses and Dissertations

An Investigation Of Project Management Techniques For Scheduling Raaf Depot Level Maintenance, Kerry M. Bayley

Theses and Dissertations

A Guide For The Consideration Of Composite Material Impacts On Airframe Costs, Jeffrey L. Isom

Theses and Dissertations

A Model For Estimating Aircraft Recoverable Spares Annual Costs, Phillip L. Redding

Theses and Dissertations

An Expert System Job Aid For Users Of The Automated Scheduling Module, Kevin A. Gore

Theses and Dissertations

An Evaluation Of Logistics Support For F-16 Aircraft Owned By Foreign Countries, Paul J. Lyons

Theses and Dissertations

Analysis Of A Waste Minimization Program For Nonhazardous Solid Wastes Utilizing Source Reduction And Recycling Techniques And Its Application To Air Force Installations, Brian F. Mcdermott

Theses and Dissertations

War Reserve Materiel Prepositioning Its History, Its Significance, And Its Future, Jack E. King Jr.

Theses and Dissertations

An Analysis Of Measures Used To Evaluate The Air Force Critical Item Program, Robert R. Lee

Theses and Dissertations

Inaccurate Data Entry Into The Air Force Maintenance Data Collection System, Jon R. Determan

Theses and Dissertations

Analysis Of Department Of Defense Organic Depot Maintenance Capacity Management And Facility Utilization Factors, Marlies Dewoody

Theses and Dissertations

A Meta-Analysis Of Pilot Selection Tests: Success And Performance In Pilot Training, William E. Lynch

Theses and Dissertations

A Comparison Of The All Mobile Tactical Air Force And The Logistics Composite Simulation Models, David P. Leonhardt

Theses and Dissertations

An Analysis Of The Defense Logistics Agency Medical Supplies Requisition Process, Sandra H. Mchugh

Theses and Dissertations

Combat Service Support And The Total Force, Lewis A. Germann

Theses and Dissertations

An Evaluation Of The Implementation Of Two-Levels Of Maintenance At Strategic Air Command Intercontinental Ballistic Missile Bases, Alan H. Russell

Theses and Dissertations

A Study Of The Air Force's Exception Management Process: Its Effect On Customer Service And Order Processing, David W. Jones

Theses and Dissertations

The Disaster™ Scheduling System: A Review And Case Analysis, Jefferson L. Severs

Theses and Dissertations

A Method For The Optimal Disposition Of Surplus Air Force Motor Vehicles, Valerie A. Tredway

Theses and Dissertations

A Computer Simulation Analysis Of The Usaf Vehicle Allowance/ Authorization Process, Charles T. Butler

Theses and Dissertations

Potential Improvements In The Logistics Acquisition Process Of The European Fighter Aircraft: An Italian Perspective, Pierluigi Ciardelli

Theses and Dissertations

Performance Assessment Of The Spare Parts For The Activation Of Relocated Systems (Spares) Forecasting Model, Paul L. Bunker

Theses and Dissertations

Stockless Medical Materials Management: Applications For The United States Air Force Medical Service, Thomas M. Harkenrider

Theses and Dissertations

Ramp-To-Ramp Transfers Of Foreign Military Sales Aircraft And Related Logistics Problems, Lewis J. Edwards

Theses and Dissertations