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Operations Research, Systems Engineering and Industrial Engineering Commons™

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Series

Systems Engineering

Engineering Management & Systems Engineering Faculty Publications

2016

Articles 1 - 7 of 7

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

Simulation And Optimization Of Ant Colony Optimization Algorithm For The Stochiastic Uncapacitated Location-Allocation Problem, Jean-Paul Arnaout, Georges Arnaout, John El Khoury Oct 2016

Simulation And Optimization Of Ant Colony Optimization Algorithm For The Stochiastic Uncapacitated Location-Allocation Problem, Jean-Paul Arnaout, Georges Arnaout, John El Khoury

Engineering Management & Systems Engineering Faculty Publications

This study proposes a novel methodology towards using ant colony optimization (ACO) with stochastic demand. In particular, an optimizationsimulation-optimization approach is used to solve the Stochastic uncapacitated location-allocation problem with an unknown number of facilities, and an objective of minimizing the fixed and transportation costs. ACO is modeled using discrete event simulation to capture the randomness of customers’ demand, and its objective is to optimize the costs. On the other hand, the simulated ACO’s parameters are also optimized to guarantee superior solutions. This approach’s performance is evaluated by comparing its solutions to the ones obtained using deterministic data. The results …

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Development Of An Instrument To Assess Capacity For Systems Thinking, Kaitlynn M. Castelle, Raed M. Jaradat Jan 2016

Development Of An Instrument To Assess Capacity For Systems Thinking, Kaitlynn M. Castelle, Raed M. Jaradat

Engineering Management & Systems Engineering Faculty Publications

With the rapid growth and integration in technology and information, the behavior and structure of complex systems presents escalating challenges. Complex systems are marked by high level of ambiguity, uncertainty, and emergence. These conditions impose challenges and difficulties for practitioners responsible to successfully manage and design complex systems. There is a fundamental need to have a cadre of individuals who are capable of dealing with increasingly complex systems and their problems. One response is Systems Thinking, which can provide a holistic thinking paradigm that opens new channels and opportunities to think differently about complex systems as a whole unit. This …

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Systemic Analysis Of Complex System Governance For Acquisition, Charles B. Keating, Joseph M. Bradley, Polinpapilinho F. Katina Jan 2016

Systemic Analysis Of Complex System Governance For Acquisition, Charles B. Keating, Joseph M. Bradley, Polinpapilinho F. Katina

Engineering Management & Systems Engineering Faculty Publications

The purpose of this paper is to explore Complex System Governance (CSG) issues related to systemic analysis of acquisition systems. CSG is an emerging field focused on the design, execution, and evolution of the functions necessary to provide continued system performance (stability) in the midst of incessant turbulence and increasing complexity. Integral to this field is the necessity to engage systems to address behavior or performance that is inconsistent with that which is desired. Systemic analysis for CSG serves to examine a system to discover fundamental system issues (e.g. acquisition). Arguably, system acquisition has an unremarkable record of success, ranging …

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Complex System Governance For Acquisition, Joseph Bradley, Polinpapilinho Katina, Charles Keating Jan 2016

Complex System Governance For Acquisition, Joseph Bradley, Polinpapilinho Katina, Charles Keating

Engineering Management & Systems Engineering Faculty Publications

As acquisition processes have become more complex, they appear to no longer be governable by traditional approaches. Missed budgets, delayed deliveries, and expensive canceled systems appear to becoming more prevalent. Numerous investigations have been conducted attempting to elicit the factors that prevented success. Those systems that succeed in terms of usability, budget, and delivery schedule are the rarity and often become case studies themselves as we try to extract the characteristics that differentiate success from failure. A different viewpoint is to look at the acquisition system from the perspective of Complex Systems Governance (CSG). Recent developments in the field of …

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Energy Sustainability Of Turkey In The Case Of Lng, Omer Ilker Poyraz, Omer Keskin, Resit Unal Jan 2016

Energy Sustainability Of Turkey In The Case Of Lng, Omer Ilker Poyraz, Omer Keskin, Resit Unal

Engineering Management & Systems Engineering Faculty Publications

Energy is both vital and strategic element for a nation to sustain its fundamental activities like security, logistics, heating, etc. Countries sustain their energy demands through internal or external sources. In the case of not being able to maintain energy demands from their internal sources, they would need to import their requirements. Whenever they need to buy raw materials, they have to build terminals to process the raw material into the required form. The dependency on the imports may cause the importing country to weaken its advantage in international conflicts, unemployment, and welfare. Therefore, countries aim to mitigate dependence to …

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Modeling Social, Economic, Technical & Environmental Components In An Energy System, Ange-Lionel Toba, Mamadou Seck Jan 2016

Modeling Social, Economic, Technical & Environmental Components In An Energy System, Ange-Lionel Toba, Mamadou Seck

Engineering Management & Systems Engineering Faculty Publications

Energy system models have become the main supporting tool for energy policy. Modern challenges in energy policy require energy systems models that integrate technical, environmental and societal aspects of the energy systems. In this paper, we introduce a conceptual model for an energy system model that specifies the relationships between social, technical, environmental, and economic aspects of an energy system. This conceptual model presented in the IDEF0 language will serve as a basis for a computational energy systems model. © 2016 The Authors.

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The Role Of 'Metasystem' In Engineering A System Of Systems, Polinpapilinho F. Katina, Charles B. Keating, Joseph M. Bradley Jan 2016

The Role Of 'Metasystem' In Engineering A System Of Systems, Polinpapilinho F. Katina, Charles B. Keating, Joseph M. Bradley

Engineering Management & Systems Engineering Faculty Publications

Fundamentally, a system of systems is characterized by operational independence, managerial independence, evolutionary development, emergent behavior, and geographical distribution. However, value-wise, a system of systems should provide greater capability beyond that which individual systems can provide. Enabling this greater capability has to be purposely designed for and managed. In this paper, we argue that this is the primary role of the metasystem structure and its execution. A metasystem is a governing structure that provides coordination and integration of multiple systems, brought together to achieve overarching missions and functions beyond those of the constituent systems. This paper articulates the differences between …

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