Index Catalog // GW ScholarSpace

Expert Judgment Model to Assess Cyber-Attack Scenarios on Enterprise Architectures

Description:: Cyber-attackers exploit people, processes, and technologies to steal high-value organizational data. The corresponding attacks are complex, cost organizations millions of dollars to resolve, and require rapid-response, architecture-based mitigation. Consequently, Cybersecurity strategies that...
Author:: Myauo, Michele
Keyword:: Cybersecurity, Cyber-Attack, Enterprise Architecture, Portfolio Management, Expert Judgment, and Systems Engineering
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Murphree, E. Lile, Bischoff, John, and Holzer, Thomas
Resource Type:: Thesis or Dissertation

The Evaluation of Symptomatic and Latent Failure Causal Factors in Complex Socio-technical Systems

Description:: Human error remains the highest symptomatic cause of system failure across multiple domains. Technology failure has seen a significant rate decrease through analyses and design changes, but human error causal factors have not experienced the same level of improvement. Designers and developers...
Author:: Erjavac, Anthony John
Keyword:: Latent cause, Causal Analysis, Symptomatic cause, Human error, and Human system integration
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Iammartino, Ronald and Fossaceca, John M.
Committee Member(s):: Murphree, E. Lile, Sarkani, Shahram, Eveleigh, Timothy, and Mazzuchi, Thomas A.
Resource Type:: Thesis or Dissertation

Spare Parts Model for Additive Manufacturing

Description:: Spare parts models have typically focused on the number of spares physically required to maintain system availability and optimize replacement policies, such as block or age replacement and variants thereof. In an era where additive manufacturing (AM), or 3D printing, as it is popularly known,...
Author:: Togwe, Thembani
Keyword:: project management, project planning/assessment/control, logistics and supportability, transition/operation/maintenance, supply chain, and systems engineering
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Eveleigh, Timothy J and Tanju, Bereket
Committee Member(s):: Etemadi, Amir, Murphree, E. Lile, Sarkani, Shahram, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

A Robust System Maturity Model Using Petri Nets

Description:: Immature systems can be plagued by high costs, high risks, and schedule delays. System maturity models are utilized to quantitatively analyze a system’s readiness to indicate whether the system is prepared to proceed to the next acquisition phase during development. Most system maturity models...
Author:: Thal, Brent
Keyword:: petri net system readiness level (PNSRL), system maturity, and systems engineering
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Olson, Bill and Blessner, Paul
Committee Member(s):: Olson, Bill, Etemadi, Amir, Murphree, E. Lile, Eveleigh, Timothy, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Predict Insider Threats Using LRM

Description:: Insider threats are one of the most damaging threats to modern systems. The ubiquity of cybersecurity problems related to insider threats promoted various solutions over the years. However, effective solutions are undermined by mathematical algorithms and host-based event driven techniques that...
Author:: Mills, Jennifer U.
Keyword:: Cybersecurity, Insider Threats, Logistic Regression, and Systems Engineering
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Dever, Jason and Stuban, Steven
Committee Member(s):: Dever, Jason, Murphree, E. Lile, Stuban, Steven, Sarkani, Shahram, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Using a Cognitive Variable Framework Derived from Systems Dynamics to Develop Options for Addressing the Performance of Human Queues

Description:: The human brain has been modeled using the cognitive cycle, a continuous loop of detection, interpretation, and action which guides decision-making and task performance. In human-driven queues, these elements can affect queuing performance. However, increasing the number of servers is the...
Author:: Smith, April
Keyword:: behavioral operations research, simulation, cognitive cycle, and multi-server queues
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Dever, Jason and Stuban, Steven M F
Committee Member(s):: Etemadi, Amir, Malalla, Ebrahim, Murphree, E. Lile, and Stuban, Steven M F
Resource Type:: Thesis or Dissertation

A New Integration-Difficulty Metric for Assessing the Integration of Independent Systems

Description:: This thesis solves a systems-engineering problem of quantifying what amount of integration is reasonable, prior to initiating a project to develop an integrated system. Systems-integration is a later engineering activity, most difficult to perform, often a large consumer of resources, and can be...
Author:: Nueslein, Michael David
Keyword:: Integration Metric, System of Systems, Complex Systems, Systems Engineering, Systems Integration, and Modularity
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Eisner, Howard
Committee Member(s):: Stankosky, Michael A, Hybertson, Duane W, Murphree, E. Lile, and Duffey, Michael R
Resource Type:: Thesis or Dissertation

REDUCING HUMAN/PILOT ERROR IN AVIATION USING AUGMENTED COGNITION AND AUTOMATION SYSTEMS IN AIRCRAFT COCKPIT

Description:: The majority of aviation accidents are caused by human error. Augmentedcognition and automation systems enhance pilot performance by evaluatingsystem limitations and flight precision and performance. This study examines thehuman-machine interface in cockpit design using the tenets of...
Author:: Naranji, Ehsan
Keyword:: Automation in Aviation, Human Factors in Aviation, Human-Machine Integration, Aviation Accidents, Augmented Cognition, and Systems Engineering
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A.
Committee Member(s):: Murphree, E. Lile, Willy, Christopher, Sarkani, Shahram, Bischoff, John, and Mazzuchi, Thomas A.
Resource Type:: Thesis or Dissertation

A First Order Approach to Optimizing Storage As A Service

Description:: Cloud computing service providers are currently viewed as innovative solutions to the global need for massive data systems because of their superior flexibility, scalability, and cost benefits. Cloud computing enabled by virtualized services is still constrained, however, by the capacities of the...
Author:: Timmons, Anita Lynette
Keyword:: Design of Experiments, Response Surface Methodology, Cloud Computing, Surface Plots, Storage, and Information Technology
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Fomin, Pavel
Committee Member(s):: Stuban, Steven M.F., Murphree, E. Lile, Sarkani, Shahram, and Mazzuchi, Thomas A.
Resource Type:: Thesis or Dissertation

Re-examination of the Enterprise Resource Planning Success Model in Cross Industry Sectors: New Statistical Findings

Description:: This dissertation sought to answer the question of why and how organizations succeed or fail in their implementation of the Enterprise Resource Planning (ERP) system. To accomplish this goal, reexamining and recalibrating the Chung (2007) ERP Success Model with the data from various industry...
Author:: Lee, Sangmin
Keyword:: ERP, Enterprise Resource Planning, ERP Cross-Industry, and ERP Success Model
GW Unit:: Engineering Management
Degree:: Ph.D.
Advisor:: Ryan, Julie J.C.H. and Mazzuchi, Thomas A.
Committee Member(s):: Deason, Jonathan P., Murphree, E. Lile, and Kim, Young J.
Resource Type:: Thesis or Dissertation

Modeling Team-Compatibility Factors Using a Semi-Markov Decision Process: A Framework for Performance Analysis in Soccer

Description:: Soccer is the most popular sport worldwide. Over time, the importance of soccer has grown beyond the sports domain, making it a large industry, a source of national pride, and the center of public attention in most countries. Due to this increased significance, it is highly important for soccer...
Author:: Jarvandi, Ali
Keyword:: Data, Soccer, Modeling, Markov, Simulation, and Sports
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas
Committee Member(s):: Murphree, E. Lile, Sarkani, Shahram, Mazuuchi, Thomas, Tanju, Bereket, and Fomin, Pavel
Resource Type:: Thesis or Dissertation

Analyzing Complex Systems Using an Integrated Multi-scale Systems Approach

Description:: Many industries, such as healthcare, transportation, education, and other fields that involve large corporations and institutions, are complex systems composed of many diverse interacting components. Frequently, to improve performance within these industries, to move into new markets, or to...
Author:: Ravitz, Alan D.
Keyword:: Multi-scale Modeling and Simulation, Systems Approach, Complex Systems, and Systems Engineering
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A.
Committee Member(s):: Blackburn, Timothy, Murphree, E. Lile, and Stuban, Steven
Resource Type:: Thesis or Dissertation

A System Dynamics Approach to Understanding the Long-Term Effects of Requirement Changes and Unit Quantity Changes during DoD Acquisition

Description:: Cost overruns within the Department of Defense (DoD) acquisitions are widespread and have come to be accepted by program managers as a daunting challenge. A study of 35 major defense acquisition programs has identified requirement changes and unit quantity changes as the two main decision factors...
Author:: Shin, Daniel
Keyword:: Requirement Changes, Unit Quantity Changes, System Dynamics, Cost Overrun, and DoD Acquisition
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Wasek, James S and Fomin, Pavel
Committee Member(s):: Murphree, E. Lile, Wasek, James S, Tanju, Bereket, Mazzuchi, Thomas, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

The Association of Knowledge Management and Project Management: An Enterprise-wide Approach Based on Stankosky’s Four Pillar of Knowledge Management and PMI’s Project Management Knowledge Areas

Description:: There are few studies investigating the association between enterprise-level knowledge management (KM) and project management (PM). Though few, these research studies have demonstrated that the available PM methods and approaches do not adequately include the necessary processes to derive maximum...
Author:: Oun, Tariq Ahmed
Keyword:: Performance measures, Project management, Project management knowledge areas, Knowledge management, and Project success
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Blackburn, Timothy D. and Olson, Bill A.
Committee Member(s):: Mazzuchi, Thomas Andrew, Murphree, E. Lile, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

Leveraging Biologically Inspired Models for Cyber-Physical Systems Analysis

Description:: Cyber-physical systems (CPS) are systems composed of distributed sensors, physical actuators and controlling computers that are interconnected through a computer network. Notable examples include: electric utility “smart grids” that can sense and optimize power distribution, transportation...
Author:: Keller, Keith Loren
Keyword:: complex systems, cyber–physical systems, bioinspired engineering, genetic algorithms, robotics, and multiobjective optimization
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Roncace, Robert A. and Sarkani, Shahram
Committee Member(s):: Roncace, Robert A., Murphree, E. Lile, Doskey, Steven, Sarkani, Shahram, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Tailoring a Large Organization’s Systems Engineering Process to Meet Project-Specific Needs

Description:: Systems engineers are faced with the challenge of adhering to broad systems engineering policies, while simultaneously tailoring systems engineering processes to meet the unique challenges facing their projects. Tailoring is often performed ad hoc, and determining which stages, steps, and...
Author:: Graviss, Matthew
Keyword:: Process Tailoring and Systems Engineering
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas
Committee Member(s):: Dever, Jason, Murphree, E. Lile, Stuban, Steven, Sarkani, Shahram, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Quality by Design (QbD) and Production System Fundamental Sigma Limits with a Pharmaceutical Industry Example

Description:: Quality by Design (QbD) has been recognized as a superior manufacturing approach versus attempting to test in quality. Without designing for quality, the level of quality attainment (defect-free product) has been observed to plateau well short of six sigma, and efforts to further improve quality...
Author:: Blackburn, Timothy Dean
Keyword:: S-Curves, Six Sigma, QbD, Systems Engineering, Fundamental Limits, and TRIZ
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Murphree, E. Lile, Eveleigh, Timothy, and Holzer, Thomas H.
Resource Type:: Thesis or Dissertation

Software System Selection based on First-Order Security Risk Assessment

Description:: Often, multiple software products exist on the same server and vulnerability in one product compromises the entire system. It is imperative then, to perform a security risk assessment when selecting the software products that will become part of a larger system. Having a quantitative security...
Author:: Das, Ruma
Keyword:: Software Selection, Topic Model, and Risk Assessment
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas
Committee Member(s):: Fomin, Paul, Murphree, E. Lile, and Wasek, James
Resource Type:: Thesis or Dissertation

Modeling Mass Collaboration Networks to Investigate Innovation Drivers and Manage Innovation Potential

Description:: There is a paucity of research that empirically substantiates the theories presented in innovation driver literature to real-world user innovation networks. Trending hackathon-style mass collaboration events provide a microcosm in which to observe innovation as it happens. NASA’s International...
Author:: Senghore, Fatima
Keyword:: mass collaboration, affiliation networks, systems engineering, user innovation networks, user innovation, and social network analysis
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Wasek, James
Committee Member(s):: Blessner, Paul, Murphree, E. Lile, Sarkani, Shahram, Mazzuchi, Thomas, and Wasek, James
Resource Type:: Thesis or Dissertation

Marine Hydrokinetic (MHK) systems: A systems engineering approach to select locations for the practical harvest of electricity from shallow water tidal currents

Description:: Due to increasing atmospheric CO2 concentration and its effect on global climates, the United States Environmental Protection Agency (EPA) proposes a Clean Power Plan (CPP) mandating CO2 reductions which will likely force the early retirement of inefficient, aging power plants. Consequentially,...
Author:: Domenech, John S
Keyword:: marine hydrokinetic energy, turbine efficiency, electricity from tidal currents, and tidal currents
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram
Committee Member(s):: Murphree, E. Lile, Doskey, Steven, Eveleigh, Timothy, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Use of Multi-Fidelity and Surrogate Models to Reduce the Cost of Developing Physics-Based Systems

Description:: Building complex physics-based systems in a timely cost-effective manner, that perform well, meet diverse user needs, and have no bad emergent behaviors is a challenge. To meet these requirements the solution is to model the physics-based system before building it. Modeling and Simulation...
Author:: Hebert, James Leland
Keyword:: Models, Surrogate Models, Systems Engineering, Kriging, FDTD, and Multi-Fidelity
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahryar and Eveleigh, Timothy
Committee Member(s):: Murphree, E. Lile, Sarkani, Shahryar, Sarkani, Shahram, Eveleigh, Timothy, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Systems Engineering Knowledge Asset (SEKA) Management for Higher Performing Engineering Teams: People, Process and Technology toward Effective Knowledge-Workers

Description:: Systems engineering teams' value-creation for enterprises is slower than possible due to inefficiencies in communication, learning, common knowledge collaboration and leadership conduct. This dissertation outlines the surrounding people, process and technology dimensions for higher performing...
Author:: Shelby Jr., Kenneth R.
Keyword:: High Performance Engineering Teams, Effective Knowledge Workers, and Systems Engineering Knowledge Asset Management
GW Unit:: School of Engineering and Applied Science
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Murphree, E. Lile, Tanju, Bereket, and Fomin, Pavel
Resource Type:: Thesis or Dissertation

Self-organization and Sense-making in Architect-Engineer Design Teams: Leveraging Health Care’s Approach to “Managing” Complex Adaptive Systems

Description:: Traditional, corporate-level risk mitigation procedures and management-led performance improvement efforts tend to ignore the relationship dynamics of Architect-Engineer design teams, and instead focus on the credentials and abilities of the individual designers, the contractual framework...
Author:: Sprauer, William A.
Keyword:: Adaptive, Self-organization, Sense-making, Architect-Engineer, Complex, and Systems
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Blackburn, Timothy D.
Committee Member(s):: Murphree, E. Lile, Stuban, Steven, Sarkani, Shahram, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Risk Matrix Analysis Using Copulas

Description:: In this research, a framework is developed to determine the best design of risk matrices based on Cox's (2008) approach, where the performance of a risk matrix is evaluated through the probability of elimination error value. The development of research requires extension of Cox's (2008) approach...
Author:: Hong, Xing
Keyword:: copula, qualitative risk analysis, and risk matrix
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A.
Committee Member(s):: Soyer, Refik, Van Dorp, Johan R., Shaw, Gregory L., and Murphree, E. Lile
Resource Type:: Thesis or Dissertation

Validating the Use of Performance Risk Indices for System-Level Risk and Maturity Assessments

Description:: With pressure on the U.S. Defense Acquisition System (DAS) to reduce cost overruns and schedule delays, system engineers’ performance is only as good as their tools. Recent literature details a need for 1) objective, analytical risk quantification methodologies over traditional subjective...
Author:: Holloman, Sherrica
Keyword:: Project Management, Maturity Assessments, System Performance, Risk Management, Performance Risk Index, and Systems Engineering
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Stuban, Steven M. F.
Committee Member(s):: Blackburn, Timothy, Murphree, E. Lile, Sarkani, Shahram, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Assessing the Probability of Prototyping Success in Systems Acquisitions (APOPS)

Description:: In a 2007 memorandum, John Young, Under Secretary of Defense at that time, mandated the use of “competitive prototyping” strategies prior to the System Design and Development phase (Young, 2007). Department of Defense Instruction 5000.02 also includes considerations for prototyping in the...
Author:: Medlej, Maroun
Keyword:: Defense Acquisition, Program success, Prototyping, Systems Engineering, and Prototype
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Dever, Jason and Stuban, Steven M. F.
Committee Member(s):: Dever, Jason, Stuban, Steven M. F., Murphree, E. Lile, Sarkani, Shahram, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

The Effect of Mission Assurance on ELV Launch Success Rate: An Analysis of Two Management Systems for Launch Vehicles

Description:: There are significant challenges involved in regulating the growing commercial human spaceflight industry. The safety of the crew and passengers should be protected; however, care should be taken not to overburden the industry with too many or too stringent, or perhaps inapplicable,...
Author:: Leung, Raymond
Keyword:: FAA, Human Spaceflight, Mission Assurance, and NASA
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Dever, Jason, Murphree, E. Lile, and Bischoff, John
Resource Type:: Thesis or Dissertation

A Framework for Implementing Systems Engineering Measures at Technical Reviews and Audits

Description:: Systems engineering measurements provide the decision maker a method to effectively manage uncertainty throughout the systems engineering lifecycle including entrance into key project milestones. Premature transition through project milestones or decision gates is likely to lead to cost and...
Author:: Orlowski, Christian T.
Keyword:: Metrics, Technical reviews, Risk management, Systems engineering, Measurement, and Leading indicators
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Blackburn, Timothy D. and Blessner, Paul L.
Committee Member(s):: Murphree, E. Lile, Sarkani, Shahram, Olson, Bill A., and Mazzuchi, Thomas A.
Resource Type:: Thesis or Dissertation

How to Catch a Black Swan: Measuring the Benefits of the Premortem Technique for Risk Identification

Description:: Risk identification is the most important step in the risk management process because risks that are unidentified are implicitly assumed and unmanaged. Projects face the challenge of increasing complexity and uncertainty. Risk management has taken advantage of powerful quantitative tools to...
Author:: Gallop, David Lewis
Keyword:: Risk Identification, Deliberate Ignorance, Black Swan, Brainstorming, Team-Based Experiments, and Premortem Technique
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Willy, Christopher and Bischoff, John
Committee Member(s):: Sarkani, Sharam, Murphree, E. Lile, Willy, Christopher, Bischoff, John, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

ENABLERS AND CHALLENGES IN USING ENTERPRISE ARCHITECTURE CONCEPTS TO DRIVE TRANSFORMATION: PERSPECTIVES FROM PRIVATE ORGANIZATIONS AND GOVERNMENT AGENCIES

Description:: Federal Agencies and Private companies have many strategic initiatives they pursue in order to realize their visions. Due to the complexity of the strategic initiatives, there is a growing need for research on how enterprise architects and leaders should go about leading modernization and...
Author:: Asfaw, Tamrat
Keyword:: Strategic Initiatives, Management Instrument, Enterprise Architecture, Transformation, and Enterprise Architect
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Bada, Abiodun O. and Murphree, E. Lile
Committee Member(s):: Bada, Abiodun O., Allario, Frank, Murphree, E. Lile, and Stankosky, Michael A,
Resource Type:: Thesis or Dissertation

Increasing Research Productivity: The Impact of Knowledge Management

Description:: Universities are havens for research development, with access to facilities, equipment, and, most importantly, people; idea exchange and knowledge development create an environment that is conducive to the growth of research productivity. The outcome of this productivity is contingent upon the...
Author:: Hossain, Nargis
Keyword:: ANOVA, Innovation, University, Knowledge Managment, SharePoint, and Research Productivity
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Bischoff, John
Committee Member(s):: Murphree, E. Lile, Willy, Christopher, Sarkani, Shahram, Bischoff, John, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Allocation of Resources to Defend Spatially Distributed Networks Using Game Theoretic Allocations

Description:: This dissertation presents research that focuses on efficient allocation of defense resources to minimize the damage inflicted on a spatially distributed physical network such as a pipeline, water system, or power distribution system from an attack by an active adversary. The allocation...
Author:: Kroshl, William Mark
Keyword:: Networks, Agent Based Simulation, Risk Analysis, and Game Theory
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas
Committee Member(s):: Dever, Jason, Murphree, E. Lile, Sarkani, Shahram, Mazzuchi, Thomas, and Fomin, Pavel
Resource Type:: Thesis or Dissertation

A Multi-Agent Simulation System to Evaluate the Disaster Response Team Coordination and Performance

Description:: Identifying the best design configuration for a disaster-response team is important for minimizing total operation time and reducing the human cost of natural and manmade disasters. This research presents a simulation system that is able to optimally design a disaster-response team and evaluate...
Author:: Hashemipour, Mehdi
Keyword:: Multi-Agent Coordination System, System Optimization and Performance, Decision Support System, Disaster Response Operation, Agent-Based Simulation, and Machine Learning
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Stuban, Steven M. F. and Dever, Jason R.
Committee Member(s):: Stuban, Steven M. F., Murphree, E. Lile, Sarkani, Shahram, Dever, Jason R., and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

A Systems Engineering Framework for Implementing a Security and Critical Patch Management Process in Diverse Environments (Academic Departments' Workstations)

Description:: AbstractA Systems Engineering Framework for Implementing aSecurity and Critical Patch Management Process in Diverse Environments(Academic Departments' Workstations)Use of the Patch Vulnerability Management (PVM) process should be seriously considered for any networked computing system. The PVM...
Author:: Mohammadi, Hadi
Keyword:: Patch Management, Vulnerability, Maintenance optimization, Systems Engineering, and Security
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A.
Committee Member(s):: Dever, Jason, Murphree, E. Lile, Sarkani, Shahram, Bischoff, John, and Mazzuchi, Thomas A.
Resource Type:: Thesis or Dissertation

Rapid Cost Estimation for Storm Recovery Using Geographic Information System

Description:: The present research introduces a new approach to estimate the recovery costs of public property in the aftermath of a storm, by integrating Geographic Information Systems (GIS). Estimating recovery costs for a disaster is a current concern for emergency responders. This work focuses on applying...
Author:: Berrios-Montero, Rolando A.
Keyword:: FEMA, Geographic Information Systems, Recovery, GIS, Hurricanes, and Cost Estimation
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Dever, Jason and Stuban, Steven M. F.
Committee Member(s):: Murphree, E. Lile, Sarkani, Shahram, Stuban, Steve M. F., Mazzuchi, Thomas, and Fomin, Pavel
Resource Type:: Thesis or Dissertation

System Goodput (GS): A Modeling and Simulation Approach to Refute Current Thinking Regarding System Level Quality of Service

Description:: This dissertation represents a modeling and simulation approach toward determining whether distributed computing architectures (e.g., Cloud Computing) require state of the art servers to ensure top performance, and whether alternate approaches can result in optimized Quality of Service by...
Author:: Sahlin, John Patrick
Keyword:: quality of service QoS, modeling and simulation, systems dynamics, computer architecture, distributed computing, and cloud computing
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Murphree, E. Lile and Wasek, James
Resource Type:: Thesis or Dissertation

Risk Identification and Evaluation Biases and a Management Framework for their Mitigation for Application in the Aerospace Sector

Description:: This research investigates the presence of cognitive biases in the risk management processes utilized at NASA, Department of Defense, and within the broader aerospace sector. A widely applied risk management tool in the aerospace sector is the risk matrix. Risk matrices were used in practice...
Author:: Emmons, Debra Lynn
Keyword:: optimism bias, bias reduction, cognitive bias mitigation, cognitive biases, risk identification, and risk management
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Olson, Bill, Blessner, Paul, and Murphree, E. Lile
Resource Type:: Thesis or Dissertation

Agent-Based Modeling of a Critical Infrastructure System: A Complex Adaptive Systems Perspective

Description:: As systems become more complex the probability increases that they will exhibit emergent behavior that could lead to system failures or widespread and prolonged service interruptions. This research presents findings on the behavior of complex systems after they experience disruptive events that...
Author:: Pumpuni-Lenss, Gloria
Keyword:: Critical Infrastructure, Complex Adaptive Systems, Agent=based model, and System Resilience
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Blackburn, Timothy and Garstenauer, Andreas
Committee Member(s):: Murphree, E. Lile, Sarkani, Shahram, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Distributed Generation Systems Planning & the Ecosystem of Electricity Technological Learning

Description:: Across the world, energy policies are promoting distributed generation systems in order to (1)improve the resilience of the energy infrastructure, (2) to mitigate the incidence of CO2 inducedclimate change, and (3) to improve cost effectiveness. When these three objectives are combined,a strong...
Author:: Kamdem, Bruno Georges
Keyword:: Technological learning, Knowledge acquisition, Competition, Energy's uncertainty, Benders' model, and Firm's regulation
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Shittu, Ekundayo
Committee Member(s):: Van Dorp, Johan, Orttung, Robert, Murphree, E. Lile, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Implications of National Culture on Knowledge Management: A cross-cultural analysis of Italian and American perceptions

Description:: Knowledge management (KM) has become an increasingly important aspect for achieving and maintaining competitive advantage across all types of organizations and businesses worldwide. However only limited research is available to understand how KM may be influenced by national culture. This...
Author:: de Leo, Francesco
Keyword:: international organizations, United States of America, knowledge management, uncertainty avoidance, Italy, and national culture
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Stankosky, Michael and Murphree, E. Lile
Committee Member(s):: Stankosky, Michael, Shaw, Gregory, Murphree, E. Lile, Calabrese, Francesco, Mazzuchi, Thomas, and Hasan, Sharjil
Resource Type:: Thesis or Dissertation

Using Analytical Network Processes to Create Authorization, Authentication, and Accounting Cyber Security Metrics

Description:: Cyber-attacks have escalated, causing decision makers to assess the trade-offs required to protect their organizations from such attacks. The use of benchmarking techniques to reduce cyber security risks would allow decision makers to use both qualitative and quantitative analyses. Systems...
Author:: Wilamowski, George Christopher
Keyword:: Metrics, ANP, Application-Benchmarking, AAA, Survey, and Cyber
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas
Committee Member(s):: Stuban, Steven M, Murphree, E. Lile, Doskey, Steven, Dever, James, Sarkani, Shahram, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Application of a Novel Multiple Kernel Learning Framework for Improving the Robustness of Network Intrusion Detection

Description:: Current day Network Intrusion Detection Systems have several shortcomings such as high rates of false positive alerts, low detection rates of rare but dangerous attacks and the need for constant human intervention and tuning. Daily reports of incidents appear in public media including major...
Author:: Fossaceca, John M.
Keyword:: Cybersecurity, Pattern Recognition, Multiple Kernel Learning, Adaptive Boosting, Systems Engineering, and Machine Learning
GW Unit:: School of Engineering and Applied Science
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Murphree, E. Lile, Eveleigh, Timothy, and Holzer, Thomas
Resource Type:: Thesis or Dissertation

ON SYSTEM ENGINEERING A BARTER-BASED RE-ALLOCATION OF SPACE SYSTEM KEY DEVELOPMENT RESOURCES

Description:: ABSTRACT NASA has had a decades-long problem with cost growth during the development of space science missions. Numerous agency-sponsored studies have produced average mission level development cost growths ranging from 23 to 77%. A new study of 26 historical NASA science instrument set...
Author:: Kosmann, William James
Keyword:: Science Instrument Development, System Engineering, Instrument Development Cost Growth, Resource Re-allocation, Barter-based Re-allocation, and Spacecraft Development Cost Growth
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A.
Committee Member(s):: Murphree, E. Lile, Eftekari, Reza, and Wasek, James
Resource Type:: Thesis or Dissertation

The Role of System Thinking Development and Experiential Learning on Enterprise Transformation

Description:: The recent economic downturn has had global repercussions in all businesses alike. Competition is fierce and a survival of the fittest model is always present; fast delivery times and innovative designs ultimately translate into the enterprises' bottom line. In such market conditions, enterprises...
Author:: Lopez, Gabriel
Keyword:: transformation, system-thinking, knowledge transfer, apprenticeship, and innovation
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A.
Committee Member(s):: Tanju, Bereket R, Murphree, E. Lile, Sarkani, Shahram, Mazzuchi, Thomas A., and Dever, Jason
Resource Type:: Thesis or Dissertation

RISK PRECURSOR ANALYSIS: AN ASSESSMENT OF FLIGHT VARIABLES AFFECTING CIVIL AVIATION ACCIDENTS AND INCIDENTS

Description:: Flight safety has been an important topic for both academia and the industry. Aviation experts and authorities, as well as commercial airline administrators, have always been looking for improvements in the safety of flights. Researchers, on the other hand, have tried to model avionic fatalities...
Author:: Kashef, Mohammad
Keyword:: Data Analysis, Flight Safety, Aviation Accidents, Risk Management, Systems Engineering, and CCA
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Mazzuchi, Thomas A and Sarkani, Shahram
Committee Member(s):: Olson, Bill, Blackburn, Timothy, Mazzuchi, Thomas A, Murphree, E. Lile, and Sarkani, Shahram
Resource Type:: Thesis or Dissertation

Prioritization of Component to Component Links for Testing in Component Based Systems

Description:: In recent years, with budgetary constraints and ever-changing mission requirements, the government and private industries have shifted their focus towards component based system development. The development of systems with commercial off-the-shelf components expedites the development process and...
Author:: Kafle, Subash
Keyword:: component testing and integration, test and evaluation, COTS, and component based system
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas
Committee Member(s):: Blackburn, Timothy, Murphree, E. Lile, Sarkani, Shahram, Mazzuchi, Thomas, and Blessner, Paul
Resource Type:: Thesis or Dissertation

Rationalizing Business Intelligence Systems and Explicit Knowledge Objects: A Prescription Toward Improving Evidence-based Management in Government Programs

Description:: Summary of contributions of this study: This study contributes new knowledge regarding the prescriptive utility of business intelligence systems and explicit knowledge objects in evidence-based management, and proposes a framework to better facilitate the management of business intelligence...
Author:: Sapp, Carlton Emory
Keyword:: Rationalization, Business Intelligence Systems, Intelligence Systems, Evidence-based Management, Explicit Knowledge Objects, and Government Programs
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas
Committee Member(s):: Dever, Jason, Tanju, Bereket R., Murphree, E. Lile, Sarkani, Shahram, and Mazzuchi, Thomas A.
Resource Type:: Thesis or Dissertation

Mobile Security: A Systems Engineering Framework for Implementing Bring Your Own Device (BYOD) Security Through the Combination of Policy Management and Technology

Description:: With the rapid increase of smartphones and tablets, security concerns have also been on the rise. Traditionally, Information Technology (IT) departments set up devices, apply security, and monitor them. Such approaches do not apply to today’s mobile devices due to a phenomenon called Bring Your...
Author:: Zahadat, Nima
Keyword:: Mobile Device Management, Mobile Security, BYOD, Bring Your Own Device, BYOD Framework, and Mobile Policy
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Blessner, Paul
Committee Member(s):: Blessner, Paul, Mazzuchi, Thomas A, Murphree, E. Lile, Sarkani, Shahram, and Wasek, James
Resource Type:: Thesis or Dissertation

A Methodology for Evaluating Technical Performance Parameter Design Margins to Control Earth and Space Science Instrument Cost.

Description:: Costs of aerospace missions have increased over the last twenty years, placing the future of the space program in jeopardy. A potential source for such growth can be attributed to the complex multidisciplinary and challenging nature of earth and space science instrument development. Design...
Author:: Jones-Selden, Felicia
Keyword:: Regression Analysis, Cost Estimation, Space Science Instruments, Technical Performance Parameters, Design Margin, and Earth Science Instruments
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Holzer, Thomas H and Eveleigh, Timothy
Committee Member(s):: Murphree, E. Lile, Sarkani, Shahram, Eveleigh, Timothy, Mazzuchi, Thomas, and Holzer, Thomas
Resource Type:: Thesis or Dissertation

A Systems Engineering Approach to Early Detection in the Intensive Care Unit

Description:: The research was designed to determine whether systems engineering tools applied to a medical screening system could detect medical patterns in retrospective data sets. The methodology defined an evidence-based bundle as a multi-dimensional system that conformed to a parameter diagram. The...
Author:: Buenviaje, Bernardo
Keyword:: Problem Management, Early Detection, and Automated Decision Tool
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Bischoff, John
Committee Member(s):: Murphree, E. Lile, Willy, Christopher, Sarkani, Shahram, Bischoff, John, and Mazzuchi, Thomas
Resource Type:: Thesis or Dissertation

Risk Assessment Using Paired Comparison Expert Judgment for Ranking of Compounding Outsourcing Facilities

Description:: In 2012, improperly compounded sterile products caused an outbreak of fungal meningitis and other fungal infections to become the largest outbreak of healthcare-associated infections in the United States. This outbreak, along with other adverse events associated with larger compounders...
Author:: Okwesili, Paul
Keyword:: pharmacy compounding, paired comparison, resource allocation, expert elicitation, risk assessment, and systems engineering
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas
Committee Member(s):: Murphree, E. Lile, Stuban, Steven, and Fomin, Pavel
Resource Type:: Thesis or Dissertation

Improving Software Project Outcomes through Predictive Analytics

Description:: The complex and emergent behavior of software systems makes information and data key components of this unpredictable environment. The use of a data-driven approach to identify and to accurately predict the sources of software project delays, cost overruns, failures, or successes may prove a...
Author:: Guillaume-Joseph, Gina
Keyword:: Project Management, Software Project Failure, Software Engineering, Systems Engineering, Predictive Analytics, and Software Projects
GW Unit:: Engineering Mgt and Systems Engineering
Degree:: Ph.D.
Advisor:: Wasek, James S
Committee Member(s):: Blessner, Paul, Murphree, E. Lile, Sarkani, Shahram, Wasek, James S., and Mazzuchi, Thomas A.
Resource Type:: Thesis or Dissertation

Many Objective Sequential Decision Making

Description:: Many routine tasks require an agent to perform a series of sequential actions, either to move to a desired end state or to perform a task of indefinite duration as efficiently as possible, and almost every task requires the consideration of multiple objectives, which are frequently in conflict...
Author:: Tozer, Bentz
Keyword:: Many Objective Optimization, Multi-objective Optimization, Reinforcement Learning, and Sequential Decision Making
GW Unit:: Systems Engineering
Degree:: Ph.D.
Advisor:: Sarkani, Shahram and Mazzuchi, Thomas A.
Committee Member(s):: Francis, Royce, Willy, Chris, and Murphree, E. Lile
Resource Type:: Thesis or Dissertation

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