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1
Law, Gordon Ki-Wai. "Decision support system for construction cycle design". Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26715.
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The objective of this thesis is to develop a conceptual design of a computerized environment for detailed design of construction activities associated with projects characterized by significant repetition.
High-rise building construction is used as the example of repetitive construction projects. The construction cycle design of a typical floor structure is studied to gain an understanding of the difficulty and complexity involved in the activity design process. Modeling techniques currently used in construction planning, modeling techniques developed in the field of operations research, and assembly line balancing techniques used in industrial engineering are reviewed to determine their applicability for detailed construction cycle design.
Using the concept of decision support systems developed in the fields of management science and knowledge engineering for solving ill-structured and ill-defined problems, a conceptual design of a decision support system for construction cycle design is developed.Applied Science, Faculty of
Civil Engineering, Department of
Graduate
2
Borenstein, Denis. "Integrated decision support system for flexible manufacturing system design". Thesis, University of Strathclyde, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301861.
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Clarke, Michael P. "A decision support system for strip mine design". Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279918.
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Huang, Xin 1958. "An integrated decision support system for backfill design". Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41614.
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Backfill design is a multi-level, data/information/expertise intensive procedure involving various professional fields. During the life cycle of mining design and operation, a series of decisions are made based on the knowledge and personal experience. The success of mining design depends largely on knowledge available, and how knowledge is managed and processed. This thesis presents a conceptual backfill design rationale in a systematic approach in terms of basic information needs and data flow. Based on this representation, an integrated decision support system for backfill design is introduced. The underlying system is based on the integration of traditional databases, expert systems, hypermedia, and logical programming concepts consisting of the following components: (1) user interface, which creates the model of tasks and the application environment; (2) hypermedia-based reference manual, which supports non-linear access to backfill design reference manual of various formats; (3) expert systems which solve certain tasks based on heuristic rules; and finally, (4) knowledge base management system which provides an efficient approach to manage and manipulate massive data of previous backfill operations. The integration of these components is achieved through a blackboard architecture. The early test of the prototype system shows that the basic objectives have been achieved to provide fast information access and certain decision makings.
5
Tarnoff, David Lee. "A decision support tool for preliminary system design". Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-10312009-020108/.
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Srinivasan, Rajesh 1972. "Architecture design of a collaborative decision support system". Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86770.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; and, (S.M.)--Massachusetts Institute of Technology, Sloan School of Management; in conjunction with the Leaders for Manufacturing Program at MIT, 2001.Includes bibliographical references (p. 87-88).
by Rajesh Srinivasan.
S.M.
7
Türkmen, Bekir Sitki. "A multi-agent systems based conceptual ship design decision support system". Thesis, University of Strathclyde, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424358.
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Tan, Kian Guan. "A decision support system framework for 'design for safety'". Thesis, University of Newcastle Upon Tyne, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299645.
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Sarshar, Marjan. "A prototype decision support system for Perturbation Analysis of Flexible Manufacturing Systems". Thesis, University of Manchester, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329755.
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Kamjoo, Azadeh. "A decision support system for integrated design of hybrid renewable energy system". Thesis, Northumbria University, 2015. http://nrl.northumbria.ac.uk/27224/.
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While large-scale wind farms and solar power stations have been used widely as supplement to the nuclear, fossil fuels, hydro and geothermal power generation, at smaller scales these resources are not reliable to be used independently and may result in load rejection or an over size design which is not cost effective. A possible solution to solve this issue is using them as part of a hybrid power system. Complexity in design and analysis of hybrid renewable energy systems (HRES) has attracted the attention of many researchers to find better solutions by using various optimisation methods. Majority of the reported researches on optimal sizing of HRES in the literature are either only considering one objective to the optimisation problem or if more than one objective is considered the effect of uncertainties are ignored. This dissertation work investigates deterministic and stochastic approach in design of HRES. In deterministic approach it shows how adding a battery bank to a grid connected HRES might result in more cost effective design depending on different grid electricity prices. This work also investigates the reliability of HRES designed by conventional deterministic design approach and shows the weakness of common reliability analysis. To perform the stochastic approach the renewable resources variation are modelled using time series analysis and statistical analysis of their available historical meteorological data and the results are compared in this work. Chance constrained programming (CCP) approach is used to design a standalone HRES and it is shown that the common CCP approach which solves the problem based on the assumption on the joint distribution of the uncertain variables limits the design space of problem. This work then proposes a new method to solve CCP to improve the size of design space. This dissertation comprises multi-objective optimisation method based on Non-dominated Sorting Genetic Algorithm (NSGA-II) with an innovative method to use CCP as a tool in estimating the expected value of the objective function instead of Monte-Carlo simulation to decrease the computational time.
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Taylor, Wendi Lyn. "Design of a decision support system for dynamic truck dispatching". Thesis, Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/25093.
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Cui, Hao. "Learning based multi-agent conceptual ship design decision support system". Thesis, University of Strathclyde, 2010. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=14372.
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Seletos, Troy Mario. "An Analysis of the Effectiveness of a Multi-Disciplinary Decision Support System on System-Level Decision Making". BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/5844.
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Decisions Support Systems (DSSs) are used to enhance decision maker speed and effectiveness. However, without a view of an entire system, any decision may have unanticipated effects such as sub-optimal outcomes. The purpose of this research is to show that with a system-level analysis, more informed decisions can be made that take into account a larger system or greater number of dimensions or objectives. This research also explores the benefits of using a DSS over analysis of unprocessed data and the effectiveness of integrating a product design generator (PDG) with a business DSS, creating a system DSS, where system-level effects can be analyzed. These are connected using software which allows them to be interactive, and dynamically updating. After this DSS was developed a variation was also made and decision makers evaluated these tools to identify how they performed in comparison to each other. In one variation, aspects of the tool were split up, guiding the decision maker through the analysis while the other did not. Using survey questions and recording decision makers' actions, it was found that decision makers are significantly faster and came to better conclusions when using the DSS over unprocessed data. However, it was also seen that the difference between the two variants of the System DSS tests was insignificant. This suggests that the limits in potential interactions in the one variant of a system DSS did not substantially reduce the ability of a decision maker to explore and make good design decisions. Overall this research showed that having a system-level tool is better than the unprocessed data, and that more extreme differences in a DSS are required for improved comparisons to establish which visualizations and elements are most effective in a System DSS. Future effort should be made to completely isolate different portions of the System DSS and see how well users are able to make decisions with it compared to the full system analysis.
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Moullec, Marie-Lise. "Towards decision support for complex system architecture design with innovation integration in early design stages". Phd thesis, Ecole Centrale Paris, 2014. http://tel.archives-ouvertes.fr/tel-00994935.
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The aim of this research work is to propose a method allowing innovation integration in early design stages and supporting architecture design of complex systems that have significant implications for the rest of overall system life-cycle. Focusing on system architectures generation support, this method proposes to use Bayesian networks combined with Constraint Satisfaction Problem (CSP) techniques in order to semi-automatically generate and evaluate complex systems architectures. Bayesian network model is used to represent the design problem in terms of decision variables, constraints and performances. Furthermore, an architecture generation algorithm is proposed to generate feasible solutions and to cluster them with regard to a given confidence level threshold. This confidence level is representing the estimation of the uncertainty on the overall system. Estimation of architecture performances are also calculated within the Bayesian network. Once the system architectures are generated, a CSP model optimises the component placement regarding placement constraints and optimisation objectives defined by designers. Software has been developed for the purpose of problem modelling and solutions visualisation. Two industrial implementations yielded in a generation of a high number of architecture solutions. In order to test the feasibility of architecture selection in an industrial environment, a study was conducted integrating four system designers. This study underlined the difficulties in defining architecture selection criteria and provides recommendations for the future system architecture selection support.
15
Reasor, Roderick. "A decision support system for integrated design analysis of a repairable item and it's logistic support system". Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-07102007-142510/.
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Eaglesham, Mark Alan. "A Decision Support System for Advanced Composites Manufacturing Cost Estimation". Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/30430.
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The increased use of advanced composites in aerospace manufacturing has led to the
development of new production processes and technology. The implementation of
advanced composites manufacturing technology is poorly served by traditional cost
accounting methods, which distort costs by using inappropriate volume-based
allocations of overhead. Activity-based costing has emerged as a methodology which
provides more accurate allocation of costs to products or activities by their usage of
company resources. Better designs may also be produced if designers could evaluate
the cost implications of their choices early in the design process. This research
describes a methodology whereby companies can improve product cost estimation at
the conceptual design phase, using intelligent searching and arrangement of existing
accounting data to enable designers to access the activity cost information more
readily. The concept has considerable scope for application in industry because it will
allow companies to make better use of information that is already being recorded in
their information systems, by providing it in a form which will enable designers to make
better informed decisions during the design process. The design decision support
framework is illustrated by applying it to a typical problem in aerospace composites
manufacturing. Feasibility of the approach is demonstrated using a prototype software
model of the Design Decision Support System, implemented using commercially
available software.Ph. D.
17
Panchal, Jitesh H. "Towards a design support system for distributed product realization". Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/19083.
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Celik, Basak. "Development Of A Decision Support System For Performance-based Landfill Design". Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609501/index.pdf.
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Performance-based landfill design approach is a relatively new design approach adopted recently in solid waste management and applied in USA, European Union countries and some developing-economy countries like South Africa. This approach rejects the strict design criteria and accommodates a design that selects the most appropriate design components of a landfill (final cover, bottom liner, and leachate collection system) and their design details to result in the best overall performance with respect to performance criteria (groundwater contamination and stability) considering the system variables (climatic conditions of the site, site hydrogeology, and size of the landfill). These design components, performance criteria and design variables involved in decision process make performance-based landfill design a complex environmental problem. Decision support systems (DSS) are among the most promising approaches to confront this complexity. The fact that different tools can be integrated under different architectures confers DSSs ability to confront complex problems, and capability to support decision-making processes. In this thesis study, a DSS to aid in the selection of design components considering the design variables and performance criteria for performance-based landfill design was developed. System simulation models and calculation modules were integrated under a unique DSS architecture. A decision support framework composed of preliminary design and detailed design phases were developed. The decision of appropriate design components leading to desired performance was made based on stability issues and vulnerability of groundwater, using knowledge gathered from DSS. Capabilities and use of the developed DSS were demonstrated by one real and one hypothetical landfill case studies.
19
Cervera, Muñoz Antonio. "Design of an Information Carrier Device for a Decision Support System". Thesis, Högskolan i Skövde, Institutionen för teknik och samhälle, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-6227.
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Automation in manufacturing leads to produce faster but it also increases level of information and relationship between parts. That makes more dificult to manage the work of operators in the manufacture chain to keep productivity high. Furthermore, manual assembly still plays a vital role in most of the factories all over the world. Hence the importance of implementing an efficient Decision Support System which helps operators to make right decisions. This project approaches to the design of a device to get information to operators. The project belongs to the University of Skövde and it is carried out in cooperation with Volvo Cars. In the first stages of the project diverse information is gathered through the literature review and market research. Literature review approaches to manufacturing organization, mobile information in manual assembly and ergonomics. Market research inquire about handheld devices. Also requirements from operators and environment are adressed. Next stages focus on the generation of ideas to hand in the information to operators. Diverse methodology was used such as brainwriting or morphological chart, leading to three different concepts. The PNI method was employed to select the best one. It consists of using handheld devices against paper sheets or wider screens. Then, three kind of handheld devices were thought. Moodboards and brainwritings were employed to explore shapes and functions. They were presented to coordinators in the factory and one of them was selected to be further developed. Mockups of different sizes were constructed and more drawings specified the dimensions in order to build a CAD model. The final product is small to be easily carried with a wide screen and a stylus to facilitate interaction. Battery ensures withstanding work shifts and components are designed to favor maintenance tasks. The final product was built using CAD software and printed on 3D. Materials, manufacturing methods and technology have been reviewed to ensure viability. Finally, last chapters discuss about diverse topics concerning this project such as ethical, enviromental or economical issues. Further work is proposed, too.
20
Adrian, Curtis. "Design of a prototype decision support system for urban redevelopment planning". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq23193.pdf.
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Manning, Stuart Neil. "A conceptual design for the Telecommunications Emergency Decision Support System (TEDSS)". Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/28062.
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West, Graeme Michael. "Computational intelligence methods for power system protection design and decision support". Thesis, University of Strathclyde, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400311.
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Lee, Pui Mun. "Incorporating concurrent engineering and design economics in a decision support system". Diss., Virginia Tech, 1993. http://hdl.handle.net/10919/40413.
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Concurrent engineering is a philosophy for improving design communication and aiding the process of recognizing and resolving design conflicts. Design economics is an integrated part of the concurrent engineering process, since cost-effective product design is at the root of many design conflicts. However, the bulk of research on concurrent engineering focuses on deriving better methods for coordinating both product and process designs with respect to functionality and manufacturability issues. The issue of implementing design economics via the concurrent engineering process at the conceptual design stage has not been adequately addressed.
This research explores the development of a structural framework for incorporating concurrent engineering and design economics into a prototype decision support system that supports the conceptual phase of the product design process. The dissertation has three major tasks: (1) To formulate a concurrent engineering framework for use during the conceptual design stage, (2) To develop an activity-based cost estimation model for estimating product cost at the conceptual level of product design, and (3) To integrate and demonstrate the concurrent engineering framework and the activity-based cost estimation model together in a prototype decision support system.
To accomplish the objective of this research, electronics manufacturing is used as an application setting. The design of printed circuit board assemblies is the domain for establishing a structural framework for incorporating concurrent engineering and activity-based cost estimation.Ph. D.
24
Deshmukh, Vinay (Vinay D. ). "The design of a decision support system for supply chain risk management". Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/42354.
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Thesis (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, June 2007.Includes bibliographical references (p. 97-98).
Where can things go wrong? This deceptively simple question has fascinated mankind since time immemorial. The question in fact forms the basis of risk management. The focus of this thesis is the risk management of supply chains. Any factor that is likely to disrupt the procurement, production, or delivery of a good or a service constitutes a supply chain risk. As several case studies from around the world indicate [4], disruptions to an enterprise's supply chain could be catastrophic to business, human safety, market competitiveness, and even national and international economies. It is therefore imperative that an a priori assessment of the factors that pose a risk to the supply chain be conducted and contingency plans developed at strategic, tactical, and operational levels to monitor and mitigate those risks. This thesis will identify all major risks that are likely to disrupt a supply chain; identify the data needed to continuously monitor each risk; suggest a synthesized framework for managing supply chain risks; propose different models to quantify risks and asses their consequences; and suggest guidelines for model use. Further, it will present a case study based on the models developed and propose a decision support system based on these models and necessary data. This work will help enterprises develop risk management plans at the strategic, tactical and operational levels, along various time horizons, and be able to execute them when supply chain risks are encountered. The target audience for this thesis includes a broad spectrum of supply chain professionals, consultants, supervisors, top executives, risk professionals, managers, software entrepreneurs, academicians, and students.
by Vinay Deshmukh.
S.M.
25
Peplinski, Jesse D. "Enterprise design : extending product design to include manufacturing process design and organization design". Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/18242.
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Swan, Andrew D. "A decision-support system for the design of retrofit sustainable urban drainage systems (SUDS)". Thesis, University of Sheffield, 2003. http://etheses.whiterose.ac.uk/3635/.
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Sustainable Urban Drainage Systems (SUDS) is a generic term that refers to various measures aimed at minimising surface runoff (and consequent flooding and pollution problems) from urban catchments. SUDS technologies include local infiltration, storage and storm-water re-use devices. Although there is considerable international evidence of the successful incorporation of SUDS technologies in new developments, there is very little indication of the extent to which they represent a viable rehabilitation option for retrofit applications to problem urban catchments in the UK. It is believed that uncertainties about the design, hydraulic performance and cost of retrofit SUDS schemes, as well as some regulatory issues, have prevented UK engineers from exploiting the full potential of this approach. This thesis presents two case studies in which retrofit SUDS have been evaluated against 'conventional' (i. e. in-sewer) drainage rehabilitation schemes. The case studies relate to the City of Leeds in Northern England, UK. In both cases it was found that SUDS technologies were viable, both in terms of hydraulic performance criteria (number and volume of CSO spills or flooding events) and in terms of comparative construction costs. Novel procedures were developed for evaluating hydraulic performance and SUDS scheme costings. The identification of the most cost-effective from all feasible SUDS technologies for a given location is not straightforward. This thesis, therefore, proposes a design methodology for retrofit SUDS. The methodology comprises a decision making model (flow chart) that indicates whether SUDS-based approaches are likely to be viable, and cost-effective for a particular application. The flow charts make reference to SUDS design criteria (such as land-take, slope and infiltration capacity) and regulatory constraints (such as Building Regulations and local groundwater protection policies). Fundamental to the flow charts arc hierarchies that characterise urban surface type, the treatment train concept, the disposal mechanism, and cost.
27
Elgarah, Wafa. "A DIALECTICAL METHODOLOGY FOR DECISION SUPPORT SYSTEMS DESIGN". Doctoral diss., University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2336.
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As organizations continue to grow in size, reaching global proportions, they have ever increasing impacts on their environments. Some believe that a much broader array of concerns should be brought into organizational decision-making processes, including greater consideration of social, political, ethical and aesthetic factors (Mitroff and Linstone, 1993; Courtney, 2001). Decision environments such as these are decidedly "wicked" (Rittel and Webber, 1973). Designing decision support systems in such environments where there is a high level of interconnectedness, issues are overlapping and a multiplicity of stakeholders is involved, is a very complex task. In this dissertation a methodology for the development of a DSS for wicked situations is proposed using the design theory building process suggested by Walls et al. (1992). This proposed theory is based on dialectic theory and the multiple perspective approach suggested by Linstone and Mitroff (1993). The design process consists of identifying relevant stakeholders, their respective worldviews, and conflicts in these worldviews. A design (thesis) and "counter design" (antithesis) are created, and a prototype systems based on these designs are developed. These prototypes are then presented to the different stakeholder groups who engage in a dialogue which leads to the development of a synthesized design. The process is repeated until all conflicts are resolved or resources are exhausted, and a final system is produced. Using action research and system development research methodologies, the proposed design theory was applied to zoning decision process in Orange County, Florida. The results of this study led to the following: 1. It is feasible to implement the MPDP methodology proposed in this dissertation. 2. The MPDP methodology resulted in a synthesized design that accommodates the different views of the stakeholders. 3. The MPDP methodology is suitable for contentious situations and may not be feasible for structured decisions. 4. Most of the subjects did achieve a more understanding of the decision process. These results suggest that the MPDP design theory can be effective in developing decision support systems in contentious situations.Ph.D.
Department of Management Information Systems
Business Administration
Business Administration: Ph.D.
28
Ceccucci, Wency A. "Decision support systems design: a nursing scheduling application". Diss., Virginia Tech, 1994. http://hdl.handle.net/10919/40303.
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Thibault, Eric. "A decision support system for the design of cost-effective metropolitan area networks". Thesis, University of Ottawa (Canada), 1999. http://hdl.handle.net/10393/8757.
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The objective of this thesis was to develop the required tools to solve a relatively comprehensive telecommunications network design optimisation problem. It can be summarised as a Minimum Cost-Flow Capacitated Network Design Problem with multiple facilities, multiple commodities and constrained by performance and survivability requirements. The resulting optimisation model is supported by one mixed-integer/linear mathematical programming formulation and implemented in a 32-bit GUI-based network design tool for automation purposes. Throughout its developmert, the model was tested and validated with randomly generated design problems. The base case application, from which the design requirements were derived, is the National Defence Headquarters (NDHQ) Metropolitan Area Network (MAN). The area of interest on the NDHQ MAN is the inter-building router backbone, where expensive leased facilities are installed to inter-connect buildings routers. As a result of this thesis, an interactive tool was developed, which provides network design and analysis capabilities. Its impact on the NDHQ MAN was lowered because of the limitations in the data available and significant changes to the network environment, but the results obtained proved very insightful in validating the performance and accuracy of the model.
30
Tettelbach, Clayton G. "Recycling Decision Support System : design and development of a Web-based DSS". Monterey, California. Naval Postgraduate School, 1997. http://hdl.handle.net/10945/8893.
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Approved for public release; distribution is unlimitedThe explosive growth of the World Wide Web creates new opportunities for the development and deployment of Decision Support Systems. No longer restricted by machine-specific limitations, Web-based Decision Support Systems (DSS) provide global access to widely diversified and geographically dispersed users through sharing of data, models, algorithms, and modeling environments. This thesis examines the design and development processes involved in the creation of a Web-based DSS. The Recycling Decision Support System utilizes a rapid prototype and refinement process to create a Web-based system focusing on supporting ordinary people and industrial users in making good decisions for recycling and disposal of household and industrial waste. Through abstraction of details from the specific Web-based DSS design, a generalized framework for supporting decision-making via the WWW is built which supports functionality in education, queries, and analysis of complex problems. An important aspect of this research is the development of a new architecture which conforms to the complexities specific to Web-based Decision Support Systems. Prompted by the additional interactions required for WWW connectivity, this architecture incorporates agents for negotiating transactions between the functional components of a standard DSS
31
Henry, Hugh A. "Military Satellite Communications Decision Support System requirements analysis and user interface design". Thesis, Monterey, California. Naval Postgraduate School, 1993. http://hdl.handle.net/10945/26072.
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This research analyzed and decomposed U. S. Space Command missions to determine the requirements of a Military Satellite Communications Decision Support System (MDSS). Alternative functional architectures for an MDSS were evaluated and a geographical user interface prototype was developed. MDSS system requirements were derived through the combined use of the method of Critical Success Factors and the Representations, Operations, Memory Aids, and Controls method. The sandwich' architecture was suggested as the most suitable functional architecture for MDSS development. The user interface prototype allowed potential MDSS users to gain an appreciation off the look and feel of a potential system so they could more precisely articulate their specific requirements to MDSS builders
32
Hernandez, Manuel A. "A decision support system for the optimal design of base-motion isolators". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03sep%5FHernandez.pdf.
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Thesis (M.S. in Mechanical Engineering and M.S. in Information Technology Management)--Naval Postgraduate School, September 2003.Thesis advisor(s): Joshua Gordis, Dan Boger. Includes bibliographical references (p. 85-86). Also available online.
33
Shahtaheri, Yasaman. "A Probabilistic Decision Support System for a Performance-Based Design of Infrastructures". Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/96804.
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Infrastructures are the most fundamental facilities and systems serving the society. Due to the existence of infrastructures in economic, social, and environmental contexts, all lifecycle phases of such fundamental facilities should maximize utility for the designers, occupants, and the society. With respect to the nature of the decision problem, two main types of uncertainties may exist: 1) the aleatory uncertainty associated with the nature of the built environment (i.e., the economic, social, and environmental impacts of infrastructures must be described as probabilistic); and 2) the epistemic uncertainty associated with the lack of knowledge of decision maker utilities. Although a number of decision analysis models exist that consider the uncertainty associated with the nature of the built environment, they do not provide a systematic framework for including aleatory and epistemic uncertainties, and decision maker utilities in the decision analysis process. In order to address the identified knowledge gap, a three-phase modular decision analysis methodology is proposed. Module one uses a formal preference assessment methodology (i.e., utility function/indifference curve) for assessing decision maker utility functions with respect to a range of alternative design configurations. Module two utilizes the First Order Reliability Method (FORM) in a systems reliability approach for assessing the reliability of alternative infrastructure design configurations with respect to the probabilistic decision criteria and decision maker defined utility functions (indifference curves), and provides a meaningful feedback loop for improving the reliability of the alternative design configurations. Module three provides a systematic framework to incorporate both aleatory and epistemic uncertainties in the decision analysis methodology (i.e., uncertain utility functions and group decision making). The multi-criteria, probabilistic decision analysis framework is tested on a nine-story office building in a seismic zone with the probabilistic decision criteria of: building damage and business interruption costs, casualty costs, and CO2 emission costs. Twelve alternative design configurations and four decision maker utility functions under aleatory and epistemic uncertainties are utilized. The results of the decision analysis methodology revealed that the high-performing design configurations with an initial cost of up to $3.2M (in a cost range between $1.7M and $3.2M), a building damage and business interruption cost as low as $303K (in a cost range between $303K and $6.2M), a casualty cost as low as $43K (in a cost range between $43K and $1.2M), and a CO2 emission as low as $146K (in a cost range between $133K to $150K) can be identified by having a higher probability (i.e., up to 80%) of meeting the decision makers' preferences. The modular, holistic, decision analysis framework allows decision makers to make more informed performance-based design decisions—and allows designers to better incorporate the preferences of the decision makers—during the early design process.PHD
34
Kim, Sung Hwan. "A decision support system for highway embankment design using FGD by-products /". The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487853913099866.
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Anya, Obinna. "Practice-centred e-health system design for cross-boundary clinical decision support". Thesis, University of Liverpool, 2012. http://livrepository.liverpool.ac.uk/9053/.
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The idea of cross-boundary clinical decision support has the potential to transform the design of future work environments for e-health through a connected healthcare system that allows for harnessing of information and peer opinion across geographical boundaries for better decision-making. The trouble, however, is that the use of healthcare information in decision-making usually occurs within the context of a complex structure of clinical work practices that is often shaped by a wide range of factors, including organisational culture, local work contexts, socially constructed traditions of actions, experiences and patients’ circumstances. They vary across geographical boundaries, and have remained largely unaccounted for in the design of current e-health systems. As a result, achieving the visions of e-health, particularly in relation to cross-boundary clinical decision support, requires a rethinking of key clinical and organisational processes in a manner that accommodates work practice as a fundamental part of how clinicians work and make decisions in the real-world. This thesis investigates the concept of work practice as a design requirement for cross-boundary clinical decision support systems in e-health. It is argued that the task of enabling informed decision support across geographical boundaries in e-health can be enhanced through an understanding, and a formal characterisation, of work practices in various healthcare work contexts, and a specification of how practice can be used, managed and transformed to suit various clinical problem situations and patients’ needs. This research takes a clinical practice-centred approach to inform e-health system design, and draws on the concept of work practice and cultural-historical theory in social science as well as situation awareness in order to describe the local traditions of actions that guide clinicians’ work in the real world. It contributes a coherent conceptual architecture comprising a practice-centred awareness model for cross-boundary awareness, a frame-based technique, named PracticeFrame, for formalising and representing work practice for system design, and ContextMorph, for adaptively transforming a suggestion across work boundaries to suit a user’s local work context and practices. An in-depth user-informed requirements capture was used to gain an understanding of clinical work practices for designing e-health system for cross-boundary decision support. A proof of concept prototype, named CaDHealth, which is based on the Brahms work practice modelling tool and includes a work practice visualisation model, named the practice display, was developed and used to conduct user-based evaluation. The evaluation revealed that incorporating practice-centred awareness enhances usefulness, acceptance and user adoption of e-health systems for cross-boundary clinical decision support.
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Gendron, Jeanine M. "Design of A Decision Support Hypertext System To Address Teenage Life Concerns". NSUWorks, 1993. http://nsuworks.nova.edu/gscis_etd/537.
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Modern living for today's adolescents includes confronting the risks presented by AIDS, teenage pregnancy, sexually transmitted diseases, and other health issues. To obtain information and make appropriate decisions regarding teenage sexuality, adolescents may depend on adults or friends. However, the potential for discomfort in requesting information of a sensitive nature is viable. In this study, therefore, the researcher designed, developed, and evaluated a prototype decision support system to disseminate information on teenage sexuality. The purpose of the system was to potentially provide an alternative response to inquiries in a confidential manner. The setting of the study was a secondary school in Broward County, Florida. The system was to be accessible through the school library media center and placed in a private location.
In designing the system, called Teenage Life Concerns (TLC), the researcher based the methodology on the premise that user participation is essential in producing a system that meets the needs of potential users. Students, faculty members, administrators, and district personnel participated through surveys, interviews, and focus groups. Domain experts were used in the knowledge acquisition process. Comments and opinions obtained from participants were utilized to build a knowledge base, software model, and finally a prototype system. In addition, system design was based on a series of construction phases of decision support system development as suggested by Turban (1993).
The TLC system was tested for reliability, validity and usability by domain experts and system users using two questionnaires. Data analysis mainly focused on the knowledge acquisition phase and software construction phase using tables, figures, and anecdotal responses to discuss reactions and perceptions of the utility of the system. Overall, evaluators rated the TLC system high in terms of ease of use, utility of program, and satisfaction with the system based on specific criteria.
The researcher chose a hypertext-based authoring tool to develop the system because of the high level of interaction possible through user control of the decision making process. It was evident that users appreciated the ease of use of the system and accessibility rate. Using 'a hypertext-based development tool may have contributed to the satisfaction level of the users.
The TLC system can be expanded in the future to include the utilization of laserdisc players and CD-ROM drives to access additional information. The researcher perceives that a major component in the positive feedback obtained from the evaluations occurred because of the active participation of potential users in the development process. The researcher advocates active research processes as coinciding with recent educational theories that emphasize exploratory-centered and process-oriented learning. Students and educators are then empowered to become partners in their own education.
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Fernández, Marco Gero. "On decision support for distributed collaborative design and manufacture". Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/16779.
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Rothe, Arnd. "Decision support problems in the Pahl/Beitz design process". Thesis, Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/18975.
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Malak, Richard J. Jr. "Using parameterized efficient sets to model alternatives for systems design decisions". Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26697.
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Thesis (Ph.D)--Mechanical Engineering, Georgia Institute of Technology, 2009.Committee Chair: Paredis, Christiaan J.J.; Committee Member: Bras, Bert; Committee Member: Choudhary, Ruchi; Committee Member: McGinnis, Leon; Committee Member: Rosen, David. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Dharmapuri, Sridhar Maanasa Priyaa. "Real-time flood mapping for disaster management decision support in Chennai". Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113515.
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Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, System Design and Management Program, 2017.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 47-49).
Crisis informatics: the multidisciplinary field combining computing and social science knowledge of disasters has become an important field of study in the last decade (Palen and Anderson 2016). With the unprecedented growth of social media, the disaster knowledge has transformed from being expert-driven knowledge to an everyday knowledge produced by different stakeholders (Hui and Tsang 2016). The aim of this research is to implement the concept of 'People as sensors' (Goodchild 2007) in India during disasters. People share granular geo-located information and broader dissemination of this Geo-social intelligence (Holderness 2014) outside of the traditional channels of emergency response. Chennai, the capital city of Tamil Nadu, is located in the southeastern India on the shores of the Bay of Bengal. With its low elevation coastal zone, inadequate provision for storm water runoff, and unregulated growth over wetlands (Parkash 2016), the city is prone to unpredictable rainfall and heavy flooding events during northeast monsoon season between October and December. The floods during December 2015 were one of the costliest natural disasters the city (T. E. Narasimhan, 2015) had witnessed and it exposed the critical need for providing real-time geospatial data to disaster managers to assist with their preparedness, rescue and relief operations. This project, initiated by Urban Risk Lab and supported by MIT Tata Center for Technology and Design (MIT Tata Center, 2016), involves developing RiskMap, a web-based platform to collect and validate real-time crowd-sourced flood reports via social media to enhance the city's resilience to extreme weather events. This thesis elaborates on the system design, development and analysis of the platform and provides suggestions for the future work.
by Maanasa Priyaa Dharmapuri Sridhar.
S.M. in Engineering and Management
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Cvetkovic, Dragan. "Evolutionary multi-objective decision support systems for conceptual design". Thesis, University of Plymouth, 2000. http://hdl.handle.net/10026.1/2328.
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In this thesis the problem of conceptual engineering design and the possible use of adaptive search techniques and other machine based methods therein are explored. For the multi-objective optimisation (MOO) within conceptual design problem, genetic algorithms (GA) adapted to MOO are used and various techniques explored: weighted sums, lexicographic order, Pareto method with and without ranking, VEGA-like approaches etc. Large number of runs are performed for findingZ Dth e optimal configuration and setting of the GA parameters. A novel method, weighted Pareto method is introduced and applied to a real-world optimisation problem. Decision support methods within conceptual engineering design framework are discussed and a new preference method developed. The preference method for translating vague qualitative categories (such as "more important 91 , 4m.9u ch less important' 'etc. ) into quantitative values (numbers) is based on fuzzy preferences and graph theory methods. Several applications of preferences are presented and discussed: * in weighted sum based optimisation methods; s in weighted Pareto method; * for ordering and manipulating constraints and scenarios; e for a co-evolutionary, distributive GA-based MOO method; The issue of complexity and sensitivity is addressed as well as potential generalisations of presented preference methods. Interactive dynamical constraints in the form of design scenarios are introduced. These are based on a propositional logic and a fairly rich mathematical language. They can be added, deleted and modified on-line during the design session without need for recompiling the code. The use of machine-based agents in conceptual design process is investigated. They are classified into several different categories (e. g. interface agents, search agents, information agents). Several different categories of agents performing various specialised task are developed (mostly dealing with preferences, but also some filtering ones). They are integrated with the conceptual engineering design system to form a closed loop system that includes both computer and designer. All thesed ifferent aspectso f conceptuale ngineeringd esigna re applied within Plymouth Engineering Design Centre / British Aerospace conceptual airframe design project.
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Gopalakrishnan, K. N. "Design and development of a decision support system for scheduling steel fabrication projects". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0002/NQ29041.pdf.
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Thibault, Éric. "A decision support system for the design of cost-effective metropolitan area networks". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0003/MQ46614.pdf.
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Miller, Ryan Craig. "A rangeland watershed management spatial decision support system: Design, implementation, and sensitivity analysis". Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/280563.
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A prototype spatial decision support system for rangeland watershed management was developed to simplify the process of incorporating advances in technology into the decision process. The application utilizes an open framework by using Web services that are components that communicate using text-based messages, thus eliminating proprietary protocols. This new framework provides an extensible, accessible, and interoperable approach for spatial decision support systems. An important input into the SDSS is digital elevation data where data are produced using different methods, and with different accuracies and resolutions. Six digital elevation models were compared with survey data to evaluate accuracies at different locations in the Walnut Gulch Experimental Watershed. The sensitivity of the SDSS was evaluated using six management systems that were ranked based on minimizing sediment yield. The sensitivity of the DEM, contributing source area value, and precipitation event size on management system rankings was evaluated. Results provide assistance for users in selecting these data and modeling values. This research illustrated that recent advances in information technology can be effectively utilized in watershed decision support technology. The Internet-based SDSS provides core functionality required for rangeland watershed management education and decision-making. In comparing digital elevation data of different sources and resolutions with survey data, the DEM data approximated surfaces well, with the higher resolution data producing lower root mean square error values. And finally, different digital elevation models, contributing source area values, and precipitation event sizes produced different management system rankings. (Abstract shortened by UMI.)
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Muntermann, Jan. "Event-driven mobile financial Information-Services : design of an intraday decision support System /". Wiesbaden : Dt. Univ.-Verl, 2007. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016494719&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Ye, Yun. "Integrated decision support for architecture & supplier identification in early complex system design". Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2014. http://www.theses.fr/2014ECAP0052/document.
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Afin de combiner les avantages de la normalisation et de la personnalisation, «la conception modulaire » est utilisée de plus en plus par les OEMs (Original Equipment Manufacturers) dans le développement de systèmes complexes. Différente de la conception traditionnelle, la conception modulaire confie l’entière responsabilité d’un module aux fournisseurs principaux. Dans ce cas, les fournisseurs commencent à collaborer avec les OEMs beaucoup plus tôt dans le processus de conception, et participent à la conception des systèmes depuis la phase de la conception conceptuelle. Avec une approche « conception modulaire», il n’est plus possible de définir le concept produit avant le choix de leurs fournisseurs, comme on le fait en conception traditionnelle. Par contre, les concepts produits et leurs fournisseurs doivent être examinés simultanément au début de la conception conceptuelle. Cependant, le lien incassable entre un module et son fournisseur est rarement pris en compte dans les méthodes de support de la conception. La plupart des méthodes existantes traitent le choix d’architecture et le choix de(s) fournisseur(s) comme deux sujets d’aide au choix séparés. Dans notre travail, nous proposons une méthode et un outil appelé«Architecture & Supplier Identification Tool (ASIT)», qui considère conjointement les performances des fournisseurs et celles de leurs modules. L’ASIT est capable de générer toutes les architectures possibles(toutes les combinaisons à modules donnés) en fonction des besoins client, en tenant compte des nouvelles technologies et des nouveaux fournisseurs. La performance globale de chaque architecture tient compte à la fois l’architecture et de ses fournisseurs, elle est estimée à partir de données de produits existants et de connaissances expertes. Les candidats appropriés (binômes architectures/fournisseurs) sont identifiés (en tenant compte de leur degré de satisfaction clients, de l’incertitude globale, et de l’impact environnemental) pour être considéré dans la conception conceptuelle. L’utilisation d’ASIT est illustré par une étude de cas de conception du groupe motopropulseur. La comparaison des résultats à d’autres méthodes montre que l’approche ASIT constitue un outil d’aide à la décision intéressant pour les OEMs,elle permet l’identification simultanée des fournisseurs et des architectures qui garantissent une performance globaleIn order to combine the advantage of standardization with those of customization, modular design has been increasingly used by OEMs (Original Equipment Manufacturers) in complex system development. Different from traditional design, modular design advocates entrusting lead suppliers with full responsibility of a module. In this case, suppliers are involved much earlier in design, and start collaborating with OEMs from the conceptual design phase. This characteristic of modular design makes it impossible to define the product concept before choosing suppliers, as is normally done in the traditional way. Instead, the product concepts and supplier possibilities need to be considered simultaneously. However, this unbreakable link between a module and its supplier is rarely considered indesign support methods. Most existing methods treat architecture and supplier as two separate issues. In this work, we propose the Architecture & Supplier Identification Tool (ASIT), which considers performance of both suppliers and their modules. The ASIT is capable of generating all possible product/system architectures based on customer requirements with consideration of new technologies and new suppliers. The overall performance of each architecture is estimated using data of existing products and expert knowledge. Appropriate candidates are identified, taking into account their customer requirements satisfaction, overall uncertainty, and environmental impact, to be considered in conceptual design. The utilization of ASIT is illustrated in a powertrain design case study. Comparing the results from different methods shows that ASIT is an interesting decision support tool for OEMs to identify suppliers and architectures regarding their overall performance
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Ross, John R. "Group decision support system to aid the process of design and maintenance of large scale systems". Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23914.
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Thompson, Stephanie Campbell. "Material Selection vs Material Design: A Trade-off Between Design Freedom and Design Simplicity". Thesis, Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-06142007-160118/.
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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2008.Janet K. Allen, Committee Member ; David McDowell, Committee Member ; Jye-Chyi Lu, Committee Member ; Jitesh Panchal, Committee Member ; Farrokh Mistree, Committee Chair.
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Briceño, Simón Ignacio. "A game-based decision support methodology for competitive systems design". Diss., Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26671.
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This dissertation describes the development of a game-based methodology that facilitates the exploration and selection of research and development (R&D) projects under uncertain competitive scenarios. The proposed method provides an approach that analyzes competitor positioning and formulates response strategies to forecast the impact of technical design choices on a project's market performance. A critical decision in the conceptual design phase of propulsion systems is the selection of the best architecture, centerline, core size, and technology portfolio. A key objective of this research is to examine how firm characteristics such as their relative differences in completing R&D projects, differences in the degree of substitutability between different project types, and first/second-mover advantages affect their product development strategies. Several quantitative methods are investigated that analyze business and engineering strategies concurrently. In particular, formulations based on the well-established mathematical field of game theory are introduced to obtain insights into the project selection problem. The use of game theory is explored in this research as a method to assist the selection process of R&D projects in the presence of imperfect market information. The proposed methodology focuses on two influential factors: the schedule uncertainty of project completion times and the uncertainty associated with competitive reactions. A normal-form matrix is created to enumerate players, their moves and payoffs, and to formulate a process by which an optimal decision can be achieved. The non-cooperative model is tested using the concept of a Nash equilibrium to identify potential strategies that are robust to uncertain market fluctuations (e.g: uncertainty in airline demand, airframe requirements and competitor positioning). A first/second-mover advantage parameter is used as a scenario dial to adjust market rewards and firms' payoffs. The methodology is applied to a commercial aircraft engine selection study where engine firms must select an optimal engine project for development. An engine modeling and simulation framework is developed to generate a broad engine project portfolio. The proposed study demonstrates that within a technical design environment, a rational and analytical means of modeling project development strategies is beneficial in high market risk situations.
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Briceñ̃o, Simón Ignacio. "A game-based decision support methodology for competitive systems design". Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26671.
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Thesis (Ph.D)--Aerospace Engineering, Georgia Institute of Technology, 2009.Committee Chair: Mavris, Dimitri; Committee Member: Hollingsworth, Peter; Committee Member: Kavadias, Stylianos; Committee Member: Schrage, Daniel; Committee Member: Volovoi, Vitali. Part of the SMARTech Electronic Thesis and Dissertation Collection.