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Operations Research, Systems Engineering and Industrial Engineering Commons™

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2008

Industrial Engineering

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Articles 61 - 72 of 72

Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering

How Do You Interpret A Confidence Interval?, Paul Savory Jan 2008

How Do You Interpret A Confidence Interval?, Paul Savory

Industrial and Management Systems Engineering: Instructional Materials

A confidence interval (CI) is an interval estimate of a population parameter. Instead of estimating the parameter by a single value, a point estimate, an interval likely to cover the parameter is developed. Many student incorrectly interpret the meaning of a confidence interval. This paper offers a quick overview of how to correctly interpret a confidence interval.

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Why Divide By (N-1) For Sample Standard Deviation?, Paul Savory Jan 2008

Why Divide By (N-1) For Sample Standard Deviation?, Paul Savory

Industrial and Management Systems Engineering: Instructional Materials

In statistics, the sample standard deviation is a widely used measure of the variability or dispersion of a data set. The standard deviation of a data set is the square root of its variance. In calculating the sample standard deviation, the divisor is the number of samples in the data set minus one (n-1) rather than n. This often confuses students. This paper offers a quick overview of why the divisor is (n-1) for calculating the sample standard deviation.

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From Automatic Identification And Data Capture (Aidc) To “Smart Business Process”: Preparing For A Pilot Integrating Rfid, S. F. Wamba, E. Lefebvre, Y. Bendavid, L.. A. Lefebvre Jan 2008

From Automatic Identification And Data Capture (Aidc) To “Smart Business Process”: Preparing For A Pilot Integrating Rfid, S. F. Wamba, E. Lefebvre, Y. Bendavid, L.. A. Lefebvre

Faculty of Informatics - Papers (Archive)

This paper examines the underlying logic behind the rules configured in a RFID middleware to support “smart business processes” in one retail supply chain. Through a detailed investigation of the underlying business processes, we will demonstrate how businesses rules can be defined, configured and refined in a RFID middleware. The results confirm that RFID technology is not a “Plug and Play” solution. RFID middleware configuration will require a high level of customization. Finally, this study allows the improvement of our understanding of the real potential of RFID technology in the supply chain context.

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Multiobjective Coordination Models For Maintenance And Service Parts Inventory Planning And Control, Oscar Martinez Jan 2008

Multiobjective Coordination Models For Maintenance And Service Parts Inventory Planning And Control, Oscar Martinez

Electronic Theses and Dissertations

In many equipment-intensive organizations in the manufacturing, service and particularly the defense sectors, service parts inventories constitute a significant source of tactical and operational costs and consume a significant portion of capital investment. For instance, the Defense Logistics Agency manages about 4 million consumable service parts and provides about 93% of all consumable service parts used by the military services. These items required about US$1.9 billion over the fiscal years 1999-2002. During the same time, the US General Accountability Office discovered that, in the United States Navy, there were about 3.7 billion ship and submarine parts that were not needed. …

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E-Quality Control: A Support Vector Machines Approach, Kalyan Reddy Aleti Jan 2008

E-Quality Control: A Support Vector Machines Approach, Kalyan Reddy Aleti

Open Access Theses & Dissertations

The web-enabled quality control process presents many benefits to industry, such as universal access, remote control capability, and integration of production equipment into information networks for improved efficiency. This capability has a great potential, since engineers can access and control the equipment anytime, anywhere as the design stages evolve. In this context, this work uses innovative methods in remote part tracking and quality control with the aid of the modern equipment and application of Support Vector machine learning approach to predict the outcome of the quality control process. The classifier equations are built on the data obtained from the experiments …

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Measuring Agility Of Organizations - A Comprehensive Agility Measurement Tool (Camt), Ameya S. Erande, Alok K. Verma Jan 2008

Measuring Agility Of Organizations - A Comprehensive Agility Measurement Tool (Camt), Ameya S. Erande, Alok K. Verma

Engineering Technology Faculty Publications

Since "Agility" is ability to respond to unpredictable changes with quick response and profitability, it is not industry specific. This "not industry specific" nature of agility makes it hard to assess and measure it on a fixed scale. Measurement of agility of an enterprise has been a major topic of research since inception of agility in 1991. Though some methods have been developed to measure agility, they mainly remain tied to manufacturing industry. As agility is present in all the industries, comprehensive tool to measure it is a necessity in order to determine responsiveness of an enterprise to external turbulences. …

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Defining Risk Assessment Confidence Levels For Use In Project Management Communications, Gary Johnson Jan 2008

Defining Risk Assessment Confidence Levels For Use In Project Management Communications, Gary Johnson

Electronic Theses and Dissertations

A review of the literature regarding risk management and effective risk communications identified that very few researchers have addressed risk assessment confidence levels when using risk scoring methods. The focus of this research is to develop a definition of risk assessment confidence levels for use in internal project management communications and to evaluate its usefulness. This research defines risk assessment confidence level as "The degree of certainty that the likelihood or consequence score (assigned by the risk assessor) reflects reality." A specific level of confidence is defined based on the types of analyses that were conducted to determine the risk …

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Project Review Maturity And Project Performance: An Empirical Case Study, Catherine Vergopia Jan 2008

Project Review Maturity And Project Performance: An Empirical Case Study, Catherine Vergopia

Electronic Theses and Dissertations

Many organizations use project management maturity models to improve their project performance. These systematic and sequential frameworks are designed to help organizations quantify their project management maturity and improve their project management processes. However, these models rarely put enough emphasis on project reviews as tools to improve project performance, because, too often, project reviews are considered as non-productive administrative processes. The lack of emphasis on project reviews in project management maturity models is also illustrated by the limited amount of research published on the relationship between project reviews and project performance. Based on the concept of project management maturity models, …

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Developmemnt Of A Modeling And Simulation Training Needs Model For Selected Defense Acquisition Workforce Communities, Lik Chun Peh Jan 2008

Developmemnt Of A Modeling And Simulation Training Needs Model For Selected Defense Acquisition Workforce Communities, Lik Chun Peh

Electronic Theses and Dissertations

The DoD Modeling and Simulation Steering Committee (M&S SC) identified Modeling and Simulation (M&S) as an educational objective for the Acquisition, Technology and Logistics (AT&L) workforce. Notably, past usages of M&S in system acquisitions for both DoD and commercial industry have demonstrated improvements in efficiency and effectiveness over traditional acquisition techniques. However, to achieve expected and consistent performance by this workforce in these new techniques, the M&S essential skill requirements for this workforce may be extensive. This research aims to validate the content and level of competency in selected M&S tools and technology necessary for consistent workforce performance. The notion …

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Modeling Lane-Based Traffic Flow In Emergency Situations In The Presence Of Multiple Heterogeneous Flows, Amani Saleh Jan 2008

Modeling Lane-Based Traffic Flow In Emergency Situations In The Presence Of Multiple Heterogeneous Flows, Amani Saleh

Electronic Theses and Dissertations

In recent years, natural, man-made and technological disasters have been increasing in magnitude and frequency of occurrence. Terrorist attacks have increased after the September 11, 2001. Some authorities suggest that global warming is partly the blame for the increase in frequency of natural disasters, such as the series of hurricanes in the early-2000's. Furthermore, there has been noticeable growth in population within many metropolitan areas not only in the US but also worldwide. These and other facts motivate the need for better emergency evacuation route planning (EERP) approaches in order to minimize the loss of human lives and property. This …

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A Comprehensive Multi-Faceted Approach For Simultaneously Analyzing Organizational Performance Measures Essential For Company Su, Ana Ferreras Jan 2008

A Comprehensive Multi-Faceted Approach For Simultaneously Analyzing Organizational Performance Measures Essential For Company Su, Ana Ferreras

Electronic Theses and Dissertations

Profit, ergonomics, safety, employee morale, quality, efficiency, and productivity are critical components that greatly impact company success within manufacturing organizations. Therefore, it is essential that a valid and reliable systematic approach that encompasses all of these factors be developed for use by top management in today's rapidly changing manufacturing environment. Organizational-level decisions made based upon a single goal or narrow perspective that only considers one of the aforementioned components, such as profit, while ignoring others, such as employee morale, have proven harmful to the long term viability and success of manufacturing companies. Often organizational leaders are not adequately equipped to …

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A Framework To Align Strategy, Improvement Performance, And Customer Satisfaction Using An Integration Of Six Sigma And Balanced, Adriana Rodriguez Jan 2008

A Framework To Align Strategy, Improvement Performance, And Customer Satisfaction Using An Integration Of Six Sigma And Balanced, Adriana Rodriguez

Electronic Theses and Dissertations

This dissertation investigated the development, implementation, and evaluation of a management methodology founded on the alignment among the strategy, performance, and customer to bring value to any organization. A case study/action research in a service organization, called Institution "Z," provided the opportunity to assess the effects of the proposed Six Sigma Scorecard (SSS) methodology in the productivity indicators (measured by cycle time, line capacity, and number of errors). The Case study/action research was conducted in three phases: Model and Concepts Design, Data Collection, and Findings. During the research, validity was pursued by using triangulation and theory to help maintain the …

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