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Operations Research, Systems Engineering and Industrial Engineering Commons™
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Articles 1 - 12 of 12
Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
Resilience Governance Through Serious Energy Gaming, Adrian V. Gheorghe, Dan V. Vamanu
Resilience Governance Through Serious Energy Gaming, Adrian V. Gheorghe, Dan V. Vamanu
Engineering Management & Systems Engineering Faculty Publications
Physical analogies emphasizing cooperative behavior in systems are explored and integrated into so called 'serious energy games', to contribute in a better understanding, monitoring and good governance of some of the complex security issues confronting the evolvement of contemporary energy systems. It is believed that such exercises might be supportive in the necessary attempt, by the many stakeholders and actors / agents involved, to bring balance to prevailing policies of which seems to be “Go change yourself - in a resilient fashion!” An extrapolation of several findings to other than energy systems tempted to implement drastic changes based on substantial …
Determining Stakeholder Influence Using Input-Output Modeling, Patrick T. Hester, Kevin Macg. Adams
Determining Stakeholder Influence Using Input-Output Modeling, Patrick T. Hester, Kevin Macg. Adams
Engineering Management & Systems Engineering Faculty Publications
Stakeholders are a vital element in all complex systems problems. They are customers, users, clients, suppliers, employees, and team members. They fund the system, design it, build it, operate it, use it, maintain it, and dispose of it. While many approaches exist for classifying and determining their attitudes, these approaches stop short of evaluating stakeholders in a holistic manner. This paper closes this research gap by developing the metric of stakeholder situation influence, a measure which allows for quantitative evaluation of stakeholder influence on a given problem. This measure is derived from Leontief Input-Output analysis. The developed approach extends previous …
Simulation Modeling And Analysis Of Complex Port Operations With Multimodal Transportation, Mariam Kotachi, Ghaith Rabadi, Mohammad F. Obeid
Simulation Modeling And Analysis Of Complex Port Operations With Multimodal Transportation, Mariam Kotachi, Ghaith Rabadi, Mohammad F. Obeid
Engineering Management & Systems Engineering Faculty Publications
World trade has been increasing dramatically in the past two decades, and as a result containers exchange has grown significantly. Accordingly, container terminals are expanding to meet this increase and new container ports have opened. Ports with one or more container terminals are considered complex systems in which many resources, entities and transporters interact to achieve the objective of safely moving containers delivered by ships inland as well as loading containers delivered by trucks and rail onto ships. Ports with multimodal transportation systems are in particular complex as they typically operate with ships arriving to one or more terminals, multiple …
A Theory Of Emergence And Entropy In Systems Of Systems, John J. Johnson Iv, Andreas Tolk, Andres Sousa-Poza
A Theory Of Emergence And Entropy In Systems Of Systems, John J. Johnson Iv, Andreas Tolk, Andres Sousa-Poza
Engineering Management & Systems Engineering Faculty Publications
Systems of Systems (SOS) meet vital needs in our society by providing capabilities that are not possible by their discrete components or subsystems. Some SOS are engineered to produce predictable results, yet they can still display emergent behavior. These behaviors are often considered negative because they are not a function of the design. However, emergent behavior can also be serendipitous and produce unexpected positive results. The authors formalize a theory of emergence based on entropy. The theory has explanatory value for emergence as an ontological and phenomenological concept in systems of systems. © 2013 The Authors.
Using Architecture Models To Design Adaptive Socio-Technical Systems, Holly A. H. Handley
Using Architecture Models To Design Adaptive Socio-Technical Systems, Holly A. H. Handley
Engineering Management & Systems Engineering Faculty Publications
An architecture framework is used to capture the overall design and structure of a complex system. The Human Viewpoint was developed to augment existing architectural frameworks with additional information relevant to the human component in the system. The Human View models collect and organize social parameters in order to understand the way that humans interact with other elements of the system; the Human View models define the socio-technological boundaries of the system. Analyses performed with the architectural data provide information regarding the congruence, or fit of the human and the system. For example, different key thread analyses identify problematic paths …
The Root Cause Of Failure In Complex It Projects: Complexity Itself, Kaitlynn M. Whitney, Charles B. Daniels
The Root Cause Of Failure In Complex It Projects: Complexity Itself, Kaitlynn M. Whitney, Charles B. Daniels
Engineering Management & Systems Engineering Faculty Publications
Increased demand for better technology and perpetual global expansion continue to provide developers with many project opportunities for success, as well as failure. While no industry is immune from project failure, the Information Technology (IT) industry is shown to be more susceptible to risk and failure than those of other industries. Agile project management, which facilitates adaptation to changing circumstances and alleviates rigid formal controls, has become more popular in the software development industry though is not entirely compatible with traditional project management approaches.In this paper we will examine the primary causes of IT project management failure stated in modern …
Thinking Systemically About Complex Systems, Patrick T. Hester, Kevin Macg. Adams
Thinking Systemically About Complex Systems, Patrick T. Hester, Kevin Macg. Adams
Engineering Management & Systems Engineering Faculty Publications
As machine age problems have given way to systems age messes, the underlying complexity associated with understanding these situations has increased exponentially. Accordingly, the methods we use to address these situations must evolve as well. Unfortunately, many antiquated methods for dealing with situations remain prominent. Systems engineering, traditionally, is the practical application of procedural problem solving, typically geared toward the acquisition of large-scale systems. The underlying paradigm for solving these problems can be characterized as systematic thinking. While quite appropriate for machine age problems, this approach lacks the theoretical rigor to deal with systems age messes. Thus, a new paradigm …
Reference Modelling In Support Of M&S—Foundations And Applications, Andreas Tolk, Saikou Diallo, Jose Padilla, H. Herencia-Zapana
Reference Modelling In Support Of M&S—Foundations And Applications, Andreas Tolk, Saikou Diallo, Jose Padilla, H. Herencia-Zapana
Engineering Management & Systems Engineering Faculty Publications
Whether by design or by practice, systems engineering (SE) processes are used more and more often in Modeling and Simulation (M&S). While the two disciplines are very close, there are some differences that must be taken into account in order to successfully reuse practices from one community to another. In this paper, we introduce the M&S System Development Framework (MS-SDF) that unifies SE and M&S processes. The MS-SDF comprises the SE processes of requirements capture, conceptual modelling, and verification and validation (V&V), and extends them to M&S. We use model theory as a deductive apparatus in order to develop the …
Orchestrating Systems Engineering Processes And System Architectures Within Dod: A Discussion Of The Potentials Of Dodaf, Taylor Hughes, Andreas Tolk
Orchestrating Systems Engineering Processes And System Architectures Within Dod: A Discussion Of The Potentials Of Dodaf, Taylor Hughes, Andreas Tolk
Engineering Management & Systems Engineering Faculty Publications
!e Department of Defense (DoD) is responsible for the development, procurement, introduction, integration, maintenance, upgrading, and retirement of all defense and related support systems. To facilitate this task, enterprise-level system architectures are used to describe capability, operational capability requirements and lower level system architectures are used to describe the functionality of system solutions which are necessary to satisfy those operational capability requirements. To ensure the attainment of the required capability solution on time and under budget, systemengineering processes are mandated to ensure consistency and rigor across all participating organizations. However, even though architecting is necessary to insure that all understand …
The Enterprise Aid Methodology: Concepts, Thomas J. Meyers, Patrick T. Hester
The Enterprise Aid Methodology: Concepts, Thomas J. Meyers, Patrick T. Hester
Engineering Management & Systems Engineering Faculty Publications
The Enterprise AID − for assessment, improvement, and design − methodology is a systems science-, operational test and evaluation-, and multicriteria decision analysis-based approach to design and deployment of performance measurement systems (PMSs) tailored to specific enterprises pursuing any or all of enterprise assessment, improvement, or design. Its two phases of design and deployment sprang from designers’ inductively generated and now prototyped response to a gap they recognized between performance measurement capabilities required by contemporary enterprises and those offered by contemporary PMSs. This paper illustrates key concepts underlying AID, while a companion document, The Enterprise AID methodology: Application, draws from …
Employing Learning To Improve The Performance Of Meta-Raps, Fatemah Al-Duoli, Ghaith Rabadi
Employing Learning To Improve The Performance Of Meta-Raps, Fatemah Al-Duoli, Ghaith Rabadi
Engineering Management & Systems Engineering Faculty Publications
In their search for satisfactory solutions to complex combinatorial problems, metaheuristics methods are expected to intelligently explore the solution space. Various forms of memory have been used to achieve this goal and improve the performance of metaheuristics, which warranted the development of the Adaptive Memory Programming (AMP) framework [1]. This paper follows this framework by integrating Machine Learning (ML) concepts into metaheuristics as a way to guide metaheuristics while searching for solutions. The target metaheuristic method is Meta-heuristic for Randomized Priority Search (Meta-RaPS). Similar to most metaheuristics, Meta-RaPS consists of construction and improvement phases. Randomness coupled with a greedy heuristic …
Accounting For Errors When Using Systems Approaches, Kevin Macg. Adams, Peggy Hester
Accounting For Errors When Using Systems Approaches, Kevin Macg. Adams, Peggy Hester
Engineering Management & Systems Engineering Faculty Publications
Complex systems problems require the use of a formal philosophical construct and dictate the use of a rigorous systems approach. A systems approach may utilize one of a variety of proven methods, but in each case it involves the imposition of order that ranges from the philosophical to the procedural. Independent of the construct or rigor used to address the complex systems problem is the opportunity to commit a number of errors as part of a systems approach. This paper will discuss six classifications for problem solving errors that may be experienced during the application of a systems approach as …