Dissertations / Theses on the topic 'Design management staircase model'
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Kim, Bo Young. "Building a design team management model for effective corporate design management." Thesis, Brunel University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.479438.
Full textJohansson, Björn. "Model management for computational system design /." Linköping : Univ, 2003. http://www.bibl.liu.se/liupubl/disp/disp2003/tek857s.pdf.
Full textZahnan, Lena. "Computer aided design-based project management model." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ59300.pdf.
Full textFlanagan, Genevieve (Genevieve Elise Cregar). "Key challenges to model-based design : distinguishing model confidence from model validation." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76492.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (p. 93-97).
Model-based design is becoming more prevalent in industry due to increasing complexities in technology while schedules shorten and budgets tighten. Model-based design is a means to substantiate good design under these circumstances. Despite this, organizations often have a lack of confidence in the use of models to make critical decisions. As a consequence they often invest heavily in expensive test activities that may not yield substantially new or better information. On the other hand, models are often used beyond the bounds within which they had been previously calibrated and validated and their predictions in the new regime may be substantially in error and this can add substantial risk to a program. This thesis seeks to identify factors that cause either of these behaviors. Eight factors emerged as the key variables to misaligned model confidence. These were found by studying three case studies to setup the problem space. This was followed by a review of the literature with emphasis on model validation and assessment processes to identify remaining gaps. These gaps include proper model validation processes, limited research from the perspective of the decision-maker, and lack of understanding of the impact of contextual variables surrounding a decision. The impact these eight factors have on model confidence and credibility was tested using a web-based experiment that included a simple model of a catapult and varying contextual details representing the factors. In total 252 respondents interacted with the model and made a binary decision on a design problem to provide a measure for model confidence. Results from the testing showed several factors proved to cause an outright change in model confidence. One factor, a representation of model uncertainty, did not result in any differences to model confidence despite support from the literature suggesting otherwise. Findings such as these were used to gain additional insights and recommendations to address the problem of misaligned model confidence. Recommendations included system-level approaches, improved quality of communication, and use of decision analysis techniques. Applying focus in these areas can help to alleviate pressures from the contextual factors involved in the decision-making process. This will allow models to be used more effectively thereby supporting model-based design efforts.
by Genevieve Flanagan.
S.M.in Engineering and Management
Baloh, Peter. "Tentative Propositions for Intergrative Knowledge Management Systems Design Model." Thesis, University of Salford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.525145.
Full textKühnlenz, Frank. "Design und Management von Experimentier-Workflows." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2014. http://dx.doi.org/10.18452/17071.
Full textExperimentation in my work means performing experiments based on computer-based models, which describe system structure and behaviour abstractly. Instead of the system itself models of the system will be explored due to several reasons. Systematic experimentation using model input parameter variation assignments leads to lots of possibly long-running experiments that must be planned, documented, automated executed, monitored and evaluated. The problem is, that experimenters (who are usually not computer scientists) miss the proper means of expressions (e. g., to express variations of parameter assignments) to describe experimentation processes formally in a way, that allows their automatic execution by a computer system while preserving reproducibility, re-usability and comprehension. My approach is to identify general experimentation workflow concepts as a specialization of a scientific workflow and formalize them as a meta-model-based domain-specific language (DSL) that I call experimentation language (ExpL). experimentation language (ExpL) includes general workflow concepts like control flow and the composition of activities, and some new declarative language elements. It allows modeling of experimentation workflows on a framework-independent, conceptional level. Hence, re-using and sharing the experimentation workflow with other scientists is not limited to a particular framework anymore. ExpL is always being used in a specific experimentation domain that has certain specifics in configuration and evaluation methods. Addressing this, I propose to separate the concerns and use two other, dependent domain-specific languages (DSLs) additionally for configuration and evaluation.
Kuehnen, Stefan Alexander. "Model Based Conceptual Communication Design in Coordination Systems." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010405-170340.
Full textKUEHNEN, STEFAN ALEXANDER. Model Based Conceptual Communication Design in Coordination Systems (under the Direction of Dr. Padmini Srinivasan-Hands and Dr. Samuel C. Winchester)The purpose of this research has been to investigate the feasibility of developing a model-based method for conceptual communication design in coordination systems. Business process modeling methodologies are surveyed and the methodology of choice, Actionworkflow?, is presented. As the basis for method development Language/Action and Speech Act theories, underlying the Actionworkflow? methodology, are examined for potential concepts aiding the development of the method. Their history and surrounding philosophies are presented. Critique of the Actionworkflow? methodology is presented and discussed.The major focus of the research is the development of the model-based method to conceptually design communications in coordination systems. Its development, structure and components are presented and explained. The method is illustrated with a simple, everyday-life, application example. Applications of the method to examine web-based e-commerce sites are presented. It has been determined that the application for these environments is insightful. The examples discussed are ebay, an auction provider, e-trade, an on-line broker, and priceline.com, a purchasing service applying a unique process for the purchase of services and goods. Consequently the application of the method to establish the feasibility of designing coordination support systems for textile new product development is provided. Coordination model development and design of communications are discussed in parallel. Application results show that the method can successfully be used for conceptually designing coordination support systems, although practical issues have to be further investigated.Finally underlying assumptions are displayed and discussed, model validation provided, performance evaluation, as to the goals set forth for the research undertaken, and recommendations for future research provided.
Gibson, David Riviere. "Model building and design augmentation for improved response surface estimation." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/32948.
Full textStout, Daniel S. "Project management model of a nuclear facility renovation." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/9904.
Full textScanlan, James Patrick. "A network model for the management of complex design projects." Thesis, University of the West of England, Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300917.
Full textGozluklu, Burak. "A new project management system dynamics model and simulator." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113517.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 56-57).
Simulators generated from project management system dynamics models are exercised for training the future project managers. In today's' high dynamic, vibrant and complex markets, the models should incorporate more business dynamics and also provide more tools to the players who can flexibly steer in the project games. Along with that objective, this study brings new dynamics and modeling approach to the original multi-phase project system dynamics model of Ford and Sterman, 1998. The new dynamics include the development of new features in the market growing the customer expectation, reflection of customer expectation to project economics, supersede of project concurrencies by rushing the tasks, allowing the defects delivered to customers to be compensated by lifetime repair cost and free positioning of the phase schedules while maintaining concurrencies. A new formulation for completion putthrough, option to include final downstream defect correction and elaborate project econometrics are also included. The model is built in modules that can be utilized to increase the number of phases and/or explain the model to the trainees more easily. The project model employs two options; a zero-defect policy and allowed defect policy where the latter is newly introduced by the repair cost. The system dynamics model is tested by proposed extreme project manager traits which are implemented as table function to use one or more modules to pursue an ultimate objective within a certain logic. A construction project principally mimicking the cases provided by Parvan et al. 2015 is simulated with the manager traits. The results initiate interesting tradeoffs such as the influence of project delivery time versus repair cost, accepting new tasks versus creating more defects or rescheduling the project or positioning the workforce before the ramping up of testing and defective task correction activities. The model necessitates a deeper understanding and analyses of long-term phenomenon such as the lifetime repair cost, the financial consequences of defects and lifetime earnings of products as well as the continuous feature development in the market and its economic value. It is found that the current model proposes an enhanced tool for the training of future project managers. Keywords: System dynamics, project management, simulation, defect policy, numerical modeling.
by Burak Gozluklu.
S.M. in Engineering and Management
Escobido, Matthew George (Matthew George Orias). "A dynamic model of competition." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/47858.
Full textIncludes bibliographical references (leaves 75-78).
The Lotka-Volterra competition model has been extensively used in the study of technology interaction. It looks at the growth rate of a certain parameter of the interacting technologies through coupled nonlinear differential equations. The interaction is then modeled as a competition with a constant competition coefficient that adversely affects the growth rate. Various studies, however, have suggested that the interaction is not only pure competition and that other interactions are possible. These suggestions have remained mostly conceptual and descriptive - lacking a definite mathematical form of the interaction that can accommodate the suggested variations and the specific implication of those variations. This thesis presents a specific form of the competition coefficient that depends on the cost and benefit of the competition to a particular technology. The cost and benefit functions are patterned after density-dependent (size) interactions in ecology. The resulting competition coefficient is not a constant but varies as the density of the competing technologies changes. Based on the variable coefficient, we extracted steady states and derived conditions of stability to analyze the dynamics of the competition. Results show that the model can provide a richer set of possibilities compared to the constant coefficient. It accommodates different modes of interactions such as symbiosis and predator-prey aside from pure competition in the steady state coexistence between technologies. It allows for shifts from one mode to another during the evolution of the technologies. Lastly, it provides modifications to strategies meant to achieve "winner-take-all" scenario coveted in business.
by Matthew George Escobido.
S.M.
Tucker, Ashley. "The use of virtual reality to model waste management facilities." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367156.
Full textBui, Thu-Tam T. "A pharmaceutical risk management model." Oklahoma City : [s.n.], 2006.
Find full textChiang, Nhan Tu. "Mesh network model for urban area." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/44698.
Full textIncludes bibliographical references (p. 52, 2-7 (2nd group)).
Decreasing population, high crime rate, and limited economic opportunities are all symptoms of urban decline. These characteristics are, unfortunately, evident in major cities and small towns. Local municipalities in these cities and towns with the aid of state and federal government have attempted to reverse urban decline through the traditional approach of urban renewal. Their idea was to create low cost housing to attract people back to urban areas. Their approach has shown mixed results with most attempts having no effect on the deterioration. The goal of this thesis is to propose a higher system approach to answer urban decline through the application of new technology, wireless mesh networks. A wireless mesh network can provide improved security, public safety, new economic opportunities, and a bridge that crosses the digital divide. Married to the appropriate applications, a wireless mesh network creates a business model that is both favorable and sustainable. More importantly, the business model brings about the human capital necessary for urban revitalization.
by Nhan Tu Chiang.
S.M.
Jouni, Mohammad S. M. Massachusetts Institute of Technology. "Reference architecture and cost estimation model for building intelligent platforms." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/114083.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 101-104).
With the recent resurgence of Machine Learning and Artificial Intelligence as a competitive advantage in product development, technical executives and managers are interested in learning what it would take to build intelligent platforms that can leverage these advances. In addition, they wish to produce cost estimates for developing such platforms. The goal of this thesis is to develop a reference architecture for an intelligent platform and an associated costing model that allows technical managers to understand the components needed to deliver such a platform and estimate the cost of each module, estimate the cost of the overall architecture, and enable what-if analysis to understand the cost tradeoffs. The intent is not to provide the values of the variables in the model, but to develop a cost model that will enable interested parties to plug in their estimated values for each factor and generate a forecast of the build cost.
by Mohammad Jouni.
S.M. in Engineering and Management
Augenstein, Dominik [Verfasser], and A. [Akademischer Betreuer] Mädche. "Design Principles for Business Model Analytics Tools / Dominik Augenstein ; Betreuer: A. Mädche." Karlsruhe : KIT-Bibliothek, 2019. http://d-nb.info/1200471253/34.
Full textHuang, Renke. "Seamless design of energy management systems." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53518.
Full textHuang, Ken S. M. Massachusetts Institute of Technology. "Towards an information technology infrastructure cost model." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42365.
Full textIncludes bibliographical references (leaves 66-67).
Ever since the introduction of the Internet in 1994, one of the defining characteristics of the global economy, particularly in the US, is a dramatic increase in expenditures on Information Technology. While this trend is expected to continue, a major issue for companies of all sizes is the manner in which precise forecasting of future IT cost may be undertaken. The present thesis investigates the possibility that a set of the essential deterministic cost drivers with varying weighted factors may prove capable of estimating total IT infrastructure costs. An online questionnaire was developed for this purpose, and was used to survey senior IT leadership teams. The data collected from this survey was then computed with Analytical Hierarchy Process (AHP) to illustrate the relative importance of different cost drivers. The study revealed three primary findings. First, that a set of essential deterministic cost drivers with varying weighted factors could be used as a general tool for estimating the total cost of IT infrastructure. Second, these different sectors prioritize cost drivers differently from each other. In the Financial Services sector, for instance, the security of the IT network was reported to be of greater importance than the service call response time. In the Technology sector, however, the opposite was true. Third, numerous correlations were found to exist within each cost driver category defined. The correlated nature of these cost parameters may mean that a more parsimonious model may be more predictive of total IT infrastructure costs. It is hoped that these findings may be of benefit to a variety of large and small commercial and government entities, which may be able to use the predictive cost drivers to help eliminate problems related to inaccurate IT cost estimates.
(cont.) It is believed that the cost model proposed may be applicable across a variety of economic sectors. In this thesis, its applicability is demonstrated within the 3 financial services and technology sectors. Future research may be useful in evaluating the model further, by increasing the sample size, and by testing the reliability and validity of the cost model within additional economic sectors.
by Ken Huang.
S.M.
Gatti, John J. (John Joseph) 1963. "Transforming the enterprise to a model-based environment." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/34798.
Full textLawson, John. "Duty specific code driven design methodology : a model for better codes." Thesis, University of Aberdeen, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274818.
Full textLuna, Coronado Jaime. "An optimization model for strategic supply chain design under stochastic capacity disruptions." Texas A&M University, 2007. http://hdl.handle.net/1969.1/85844.
Full textFoo, Jody. "DocPlayer: Design Insights from Applying the Non-HierarchicalMedia-Player model to Document Management." Thesis, Linköping University, Department of Computer and Information Science, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2086.
Full textManaging documents is an integral part of computer use, and with the growing document collections of today, the importance of tools that are both flexible and efficient is becoming more evident. In many cases, the hierarchical file system used by many operating systems is also used for document management purposes. However, by using the file system for document management, restrictions and limitations such as strict hierarchical document classification and the use of non-content-related document properties are inherited. This thesis explores some of the consequences of extending the non- hierarchical media-player model to handle certain document-management tasks. In order to investigate some of these design issues, DocPlayer, a system with non-hierarchical (set-based) filing mechanisms was created that supports multi- category document categorization. This system was then analyzed in the context of document-management tasks associated with writing a thesis. The main insights for designers of document-management systems include advantages and disadvantages of multi-category document categorization.
Le, Hoang Nam. "A transformation-based model integration framework to support iteration management in engineering design." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608020.
Full textGurumurthi, Suryanarayanan 1975. "Guidelines for the design of flexibility in queueing systems : model, measures, and analysis." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28683.
Full text"September 2004."
Includes bibliographical references (leaves 63-64).
(cont.) have a relatively limited impact on throughput and overall utilization measures when compared to strategic flexibility design parameters such as the assignment of long-term job responsibilities to servers. However, we show that this influence on performance is significant enough that various flexibility design alternatives are better compared after taking into account the control policy that will be used to operate the system. Furthermore, and motivated by the recent interest in revenue management techniques for operational systems, we show that such operational control policies can have disproportionate influence on revenue and cost measures of performance; this fact further underscores the importance of having such models, measures, and analytical tools to examine various system design alternatives for improving performance.
An analytical and computational framework is presented that has been developed for the performance analysis of arbitrary queueing networks with multiple heterogeneous servers and multiple customer classes, where customers have the flexibility of being processed by more than one server and servers possess the capability of processing more than one customer class. Jobs of a given class may arrive according to an independent Poisson process to a facility consisting of multiple heterogeneous servers. The service time for the processing of any given job class at any given server is assumed to be exponentially distributed with a mean that could vary by job class as well by server. Significantly, we do not impose any restriction on the set of job classes that can be processed by any given server. Assuming finite work-in-process capacity in terms of the number of jobs already in the system, we allow for multiple stages of processing in the queueing system. In order to motivate the research, we first identify the different forms of flexibility in such queueing systems that are relevant to managers given their importance as design factors and control policies for higher performance. Next, we present an analytical framework whose goal is to capture for performance analysis, the relative impact of the different forms of flexibility so identified. Third, we demonstrate the usefulness of the modeling framework through a simple but illuminative numerical analysis of single-stage queuing systems that in turn shows the significance of these flexibility mechanisms to the performance measures of interest to system managers. In terms of insights from the modeling efforts, we first show that when evaluated within this framework, control policies such as job-routing and job-selection rules
by Suryanarayanan Gurumurthi.
S.M.
Santoso, Tjendera. "A comprehensive model and efficient solution algorithm for the design of global supply chains under uncertainty." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/32769.
Full textKhalid, Areeb. "Design of an Aging Estimation Block for a Battery Management System (BMS) :." Thesis, Karlstads universitet, Institutionen för ingenjörsvetenskap och fysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-29205.
Full textYang, Hong Mo. "An approach to product design using a product performance versus cost model." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13418.
Full textIncludes bibliographical references (leaf 73).
by Hong Mo Yang.
M.S.
Cherian, Binoy. "Global delivery of IT services : looking beyond the global delivery model." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42346.
Full textIncludes bibliographical references (p. 95-99).
The objective of this thesis is to analyze the factors that create competitive advantage through global delivery of IT services. Research on this thesis consists of a review of IT services markets and globally distributed operating models for IT services. A simple framework is created to analyze global delivery models (GDM) used by IT services companies. A few companies, including Infosys, have pioneered the GDM and hence the framework created is used to analyze Infosys' global delivery model. Finally, recommendations are made, based on this analysis, to enable firms to gain competitive advantage by looking beyond the adoption of global delivery models for IT services.
by Binoy Cherian.
S.M.
Robertson, David C. (David Chandler). "CAD systems and communication in design engineering--a test of the information processing model." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/13593.
Full textAthya), Kesapradist Jeanne A. (Jeanne. "A model for exploration of factors affecting parallel research and development strategies." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35546.
Full textIncludes bibliographical references (p. 40-41).
Early stages of product development are critical to success of the final product. Decisions made in the early stages will affect the design choices available during the entire development cycle. This thesis examines two research and development strategies. One product development strategy is to make critical decisions as early as possible to manage costs and coordinate work. Making decisions early can help controls costs. Early decisions can also limit the potential value of the product. The value of decisions made at the beginning of the development cycle when the least is known about the problem and the potential solutions are most susceptible to uncertainty. An alternate approach is to employ a parallel research and development strategy. Multiple alternative designs are pursued as if they were the final choice. Decision makers can then make more informed choices for the design of their product. This approach has higher development costs. The net benefit of the project can be higher due to increases in quality and decreases in schedule. Understanding when to apply parallel research and development strategy is an important consideration for those facing uncertainty in their product development cycle.
(cont.) A systems dynamics model was used to illustrate how the intensity and commitment to a parallel research and development strategy affects the efficiency and effectiveness of product development. The model shows that the number of alternatives and the time alternatives are developed before one alternative is chosen are both important factors for effectiveness and efficiency. The model also shows that it is important to strive for variety in the alternatives added.
by Jeanne A. Kesapradist.
S.M.
Hatanaka, Iwao 1964. "A model-based framework for risk assessment in human-computer controlled systems." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/91718.
Full textBlackmore, Kathleen M. (Kathleen Marie) 1971, and Kelly L. 1969 Zechel. "Business model and system architecture integration for development of new product features." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/91784.
Full text"January 2003."
Includes bibliographical references.
by Kathleen M. Blackmore and Kelly L. Zechel.
S.M.
Le, Roux Leonie. "The development of an instructional design model as a strategic enabler for sustainable competitive advantage." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/1483.
Full textThesis (PhD (Business Management))--Stellenbosch University, 2008.
Organisations increasingly operate in an environment of continuous change and turbulence which places new demands on the choice of business and supportive strategies relevant not only to the sustainable competitive advantage (SCA) of the particular organisation, but also countries and the global nature in which they operate. A business-level strategy is to a large extent vested in intangible resources, specifically human resources strategy and capital, including the capabilities embodied in a productive and skilled workforce. In Africa, and South Africa in particular, there is a shortage of a workforce of such a nature. This is amongst others the result of past inequalities but also of shortcomings in current training practices in both the private and public sectors. One way to improve workforce output is though appropriate training aimed at increasing job-specific knowledge and the concomitant skills and productive behaviour. Changes and turbulence in the environment, therefore also create different challenges to training strategies and practices, with a shift from all-at-once to ongoing training with verifiable learning. In this regard instructional design (ID) models are deemed intrinsic to training strategy. In this dissertation an ID model within a particular contextualised situation is offered that broadens, deepens and extends existing ID models by positioning it within business-level strategy and by utilising a multidisciplinary approach pertinent to the new demands on training. To serve as a test-bed for the ID model it is implemented in a case organisation. The aim of the research is to evaluate the impact, based upon action standards, of the ID model on job-specific knowledge and productive behaviour and to provide an explanation of the internal construct relationships of the ID model. The purpose of the research is exploratory and interpretive, culminating in the single-case study tactic, wherein both quantitative and qualitative methods are applied. The case organisation is considered to be representative of a certain type of organisation with comparable characteristics. Where the existing literature supports the results (as in this instance), inductive generalisation facilitates the transferability and exportability of the ID model to other organisations. Results reveal a positive reaction to the ID model and a measurable increase in job-specific knowledge and concomitant productive behaviour. It is considered to be preferable over more traditional training practices. The relationships between the internal constructs of the ID model and improved job-specific knowledge and productive behaviour are seen to be facilitated by the combination and interplay of the components of the ID model. The contribution of this research is in providing and evaluating an ID model aimed at addressing the previous shortcomings in training and ID models and the application thereof in practice. Thus, the significance of the study lies in its extension of existing literature on ID models and specifically their contribution to sustainable competitive advantage, i.e. an academic theoretical contribution that extends the current body of knowledge. Particularly in its South African and African context, given the background of shortages in skills and productive behaviour and the need for fast-tracking the development of a competent workforce, the study is significant in that it provides guidelines for the practical development and implementation of a new ID model. The study makes recommendations to enhance both the formulation of the theoretical ID model as well as its practical implementation. It furthermore recommends extended research to explore the possibility of exporting the ID model to a broader range of private sector organisations as well as its possible transferability to public sector organisations.
Lu, Weijun [Verfasser]. "A Model-based Approach for Robust Design in the Conceptual Phase of Product Development / Weijun Lu." München : Verlag Dr. Hut, 2019. http://d-nb.info/117889911X/34.
Full textStukus, Paul D. "Systems-Theoretic Accident Model and Processes (STAMP) Applied to a U.S. Coast Guard Buoy Tender Integrated Control System." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113528.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 112-113).
The Systems-Theoretic Accident Model (STAMP) developed by MIT's Dr. Nancy Leveson was applied in this thesis to a ship navigation control system used on U.S. Coast Guard buoy tenders. The legacy system installed on the Service's 16 sea-going buoy tenders experienced numerous incidents that had potential to be hazardous to the ships and their crews. Faced with the dual needs of ensuring safety of mission execution and restoring confidence in the overall ship control system, yet faced with a limited budget, Coast Guard decision-makers elected to conduct a partial recapitalization of the system's hardware and software. This thesis explores the application of system safety methods to analyze the legacy system on the seagoing buoy tenders. An accident analysis of a particular incident was conducted using STAMP methodologies, and its results were compared/contrasted with the results of a more traditional root cause failure analysis that was contracted by the Coast Guard following the incident. Several added insights pertaining to system safety and process improvement were obtained by using STAMP. Additionally, a hazard analysis was performed on the control system using STAMP techniques. This hazard analysis yielded 92 specific design requirements that may be incorporated into future system upgrades on these or similar vessels. The thesis concludes that STAMP methodologies are appropriate to generate actionable recommendations for future control system upgrades on U.S. Coast Guard buoy tenders. It also concludes that STAMP techniques may lead to safer controls in the greater hierarchical control structure for shipboard buoy tending operations. Finally, suggestions are made for future research/application of STAMP principles in the Coast Guard's management of operational safety, asset acquisition, and cybersecurity.
by Paul D. Stukus.
S.M. in Engineering and Management
Meshkova, Elena [Verfasser]. "Design and self-management of wireless networked systems with model-driven optimization / Elena Meshkova." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2015. http://d-nb.info/1076067425/34.
Full textWyant, Marvin Abram. "Design and implementation of a prototype graphical user interface for a model management system." Thesis, Monterey, California : Naval Postgraduate School, 1988. http://hdl.handle.net/10945/23010.
Full textBeset, Doğan Arda Günaydın Murat. "A model for assesing project management maturity level of architectural design offices (ARCH-PMM)/." [s.l.]: [s.n.], 2007. http://library.iyte.edu.tr/tezlerengelli/doktora/mimarlik/T000666.pdf.
Full textVegas, Eduardo Rojas. "SIDL : design and specification of a compositional object-oriented model for generalised data management." Thesis, University of Kent, 1996. https://kar.kent.ac.uk/21313/.
Full textUfongene, Charles Mmaduka. "A system dynamics model for the strategic analysis of options for sourcing engineering design." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/44696.
Full textIncludes bibliographical references (p. 128-131).
EC (Engineering Change) is the natural by-product of the Engineering Design process. There are two types of EC: Revisions and Defects Correction. Revisions arise because Engineering Design is an iterative process, requiring Engineers to implement necessary Revisions to the design of a product or systems to improve performance measures. Defects on the other hand are pure design errors, and arise from the fact that the Engineering Design work is not being accomplished with Perfect Quality. These Defects must therefore be corrected in what is termed Rework. EC is the critical factor in determining Lead Time and Labor cost of an Engineering Design work. The generation of Rework - requiring EC depends on several factors including : Quality, Design Complexity, Time to Discover Rework, Time for Issues Resolution, Hiring New and less experienced staff and Over Time work. This thesis presents a Systems Dynamics Model which incorporates these factors as exogenous variables to enable the simulation of their impacts on endogenous variables such as Lead Time and Labor costs. Since these factors exhibit wide variability when the Engineering Design is accomplished In-House compared to when it is Outsourced, the model is therefore a tool that can help an OEM in the Strategic Analysis of Options for the Sourcing of Engineering Design work. A simulation example is given in which an Engineering Design with 474 Initial Designs required 400 fully experienced Engineers to accomplish in 360 Days and a quality level of 52% (the Baseline case). The OEM had only 200 fully experienced Engineers on hand. Facing a staff capacity constraint, this OEM therefore explores a number of In-House Sourcing Options (Hiring and Over Time) and a number of Outsourcing Options (Suppliers with staff capacities of 400 to 1,000, and low (40%) and high (60%) Quality levels.
(cont.) The analysis concludes that there are three factors that have major impacts on the viability of Outsourcing. First, when the volume of work to be accomplished is high, Outsourcing of engineering design is a viable option. However, as the complexity of the design increases, outsourcing of engineering design becomes increasingly less attractive. Finally, the analysis found that supplier quality is critical to successful outsourcing. Outsourcing to regions with low labor rates is attractive for labor cost reduction, but do not solve the problem of poor supplier quality with negative impact on Lead Time.
by Charles Mmaduka Ufongene.
S.M.
Knox, Lenora A. "Use of Model-Based Design Methods for Enhancing Resiliency Analysis of Unmanned Aerial Vehicles." Thesis, The George Washington University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10265223.
Full textThe most common traditional non-functional requirement analysis is reliability. With systems becoming more complex, networked, and adaptive to environmental uncertainties, system resiliency has recently become the non-functional requirement analysis of choice. Analysis of system resiliency has challenges; which include, defining resilience for domain areas, identifying resilience metrics, determining resilience modeling strategies, and understanding how to best integrate the concepts of risk and reliability into resiliency. Formal methods that integrate all of these concepts do not currently exist in specific domain areas. Leveraging RAMSoS, a model-based reliability analysis methodology for Systems of Systems (SoS), we propose an extension that accounts for resiliency analysis through evaluation of mission performance, risk, and cost using multi-criteria decision-making (MCDM) modeling and design trade study variability modeling evaluation techniques. This proposed methodology, coined RAMSoS-RESIL, is applied to a case study in the multi-agent unmanned aerial vehicle (UAV) domain to investigate the potential benefits of a mission architecture where functionality to complete a mission is disseminated across multiple UAVs (distributed) opposed to being contained in a single UAV (monolithic). The case study based research demonstrates proof of concept for the proposed model-based technique and provides sufficient preliminary evidence to conclude which architectural design (distributed vs. monolithic) is most resilient based on insight into mission resilience performance, risk, and cost in addition to the traditional analysis of reliability.
Giansiracusa, Michael P. "Preliminary design capability enhancement via development of rotorcraft operating economics model." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/61865.
Full textPage numbers proceeded by chapter numbers. Cataloged from PDF version of thesis.
Includes bibliographical references (p. 107-111).
The purpose of this thesis is to develop a means of predicting direct operating cost (DOC) for new commercial rotorcraft early in the design process. This project leverages historical efforts to model operating costs in the aviation industry coupled with a physics-based approach. The physics governing rotorcraft operation are combined with fundamental considerations encountered during rotorcraft design to identify potential design parameters driving operating costs. Sources for obtaining data on these parameters for existing designs are explored. The response data is generated by estimating operating costs for seventy-seven currently available commercial rotorcraft models under a fixed set of operating assumptions. Statistical analysis of this data is combined with the physics and first principles approach to identify key explanatory variables demonstrating a strong relationship to operating cost. Multiple regression techniques are used to develop transfer functions relating rotorcraft design variables to direct operating cost. The analysis shows that the maximum takeoff gross weight of the rotorcraft design is strongly correlated with direct operating costs. Specifically, a simple regression model using the square root of maximum takeoff gross weight as the only explanatory variable can be used to account for over 90 percent of the variation in total direct operating cost (TDOC). After accounting for maximum takeoff gross weight, the analysis suggests that rotorcraft models with two engines have higher TDOC than those with a single engine. A multiple regression model using maximum takeoff gross weight and the number of installed engines in the rotorcraft design is presented and accounts for 97 percent of the variation in TDOC. This model allows designers to quickly estimate TDOC for new rotorcraft early in the design process, before many of the major design parameters have been finalized. In addition to the aggregate or total DOC models, regression models for a few key subcategories of DOC are developed including, fuel related DOC, airframe maintenance related DOC and engine maintenance related DOC. In the case of fuel related and airframe maintenance related DOC, the maximum takeoff gross weight is found to be the single strongest explanatory variable. For the engine maintenance DOC, the engine weight is found to be the single variable most strongly correlated with operating cost. We conclude that an appropriate measure of weight (maximum takeoff gross weight or engine weight) is an important driver for direct operating cost. After accounting for weight, the models are refined by considering additional explanatory variables leading to models of greater accuracy and complexity. The modular nature of the model presented allows operating cost estimates to be improved and refined as additional details of the rotorcraft design become available during the design process.
by Michael P. Giansiracusa.
M.B.A.
S.M.
Lambert, Charles E. IV. "Understanding the dynamic socio-technical aspects of merger and acquisition integration in the IT industry : a model-based framework." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113521.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 74-75).
Mergers and acquisitions (M&A) enable organizations to broaden their set of capabilities that equip them better to deal with the challenges lying ahead. While M&A transaction values account trillions of dollars each year, their success rate is surprisingly low. In spite of this, the amount of research aimed at reducing the uncertainty and risk associated with a M&A transaction is limited. In order to continue filling this gap, this research focuses on the socio-technical aspects of a merger or acquisition in the IT industry. This thesis examines available research literature and current best practices in the industry. Additionally, this study identifies five focus culture areas from empiric qualitative data acquired in the field. The focus areas examined in this thesis correspond to the most significant cultural challenges faced during an IT acquisition. Based on the initial findings stemming from a literature review and data analysis, this thesis develops a system dynamics model, which simulates transient behavior of the complex socio-technical underlying structures of an IT merger. This thesis thereafter proposes a model-based IT integration framework to assist the M&A management team and decision making leadership in their assessment, development and maintenance of a sound organizational model geared at supporting current and future M&A transactions. Given the fact that research on this topic is limited, this thesis represents only an initial effort to further the understanding of M&A. Further research must be developed in the future to validate this model-based IT integration framework, including improved methods of acquiring socio-technical attributes.
by Charles E. Lambert, IV.
S.M. in Engineering and Management
Ning, Nick Ke. "Strategy-V : adaptive model and experimental validation of strategy and implementation for teamwork." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122432.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 99-102).
Project management has three dimensional constraints: scope, schedule, and cost. The Agile project management framework is increasingly a challenge for cross-organizational teamwork, since the framework often results in strategy implementation deviation from the original strategic intent due to the three project constraints associated with teamwork. To bridge the gap between strategy and implementation, the Strategy-V Model is proposed as an adaptive framework to semantically inject Agile activities and interactions into Waterfall functional structures of strategy and implementation in software development extended organizations. To quantify such framework performance, new measures are proposed as sociotechnical sensors namely Project Emergent Value (PEV) and Project Utilization Value (PUV) using a fourth dimension of teamwork reward for project quality.
The Strategy-V Project Utilization Theorem is mathematically set forth as flexible options for the use of the new adaptive framework based on the sociotechnical sensors. The theorem is generalized to the Theory of Project Framework Utilization as a guideline to choose effective framework. Further work explores the Strategy-V Model variants in organizational strategy management and Flexible Strategy design under uncertainties. A case study shows the use of the Strategy-V Model in analyzing Open Source projects to advance the adaptive strategy formation. Open source as a corporate strategy has been redefining corporate innovations, saving development cost, and gaining faster time to market and larger market shares. A corporate open source project faces many uncertainties during strategy implementation such as effective contributions from external development community, projects dependencies, competitions, and economic impacts.
This research also proposes a Flexible Option design as a case study for corporate decision making that leverages corporate internal resources and investments to optimize strategy implementation across organizations.
by Nick Ke Ning.
S.M. in Engineering and Management
S.M.inEngineeringandManagement Massachusetts Institute of Technology, System Design and Management Program
Wilmer, Greg. "OPM model-based integration of multiple data repositories." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100389.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (page 90).
Data integration is at the heart of a significant portion of current information system implementations. As companies continue to move towards a diverse, growing set of Commercial Off the Shelf (COTS) applications to fulfill their information technology needs, the need to integrate data between them continues to increase. In addition, these diverse application portfolios are becoming more geographically dispersed as more software is provided using the Software as a Service (SaaS) model, and companies continue the pattern of moving their internal data centers to cloud-based computing. As the growth of data integration activities continues, several prominent data integration patterns have emerged, and commercial software packages have been created that covers each of the patterns below: 1. Bulk and/or batch data extraction and delivery (ETL, ELT, etc.); 2. Messaging / Message-oriented data movement; 3. Granular, low-latency data capture and propagation (data synchronization). As the data integration landscape within an organization, and between organizations, becomes larger and more complex, opportunities exist to streamline aspects of the data integrating process not covered by current toolsets including: 1. Extensibility by third parties. Many COTS integration toolsets today are difficult if not impossible to extend by third parties; 2. Capabilities to handle different types of structured data from relational to hierarchical to graph models; 3. Enhanced modeling capabilities through use of data visualization and modeling techniques and tools; 4. Capabilities for automated unit testing of integrations; 5. A unified toolset that covers all three patterns, allowing an enterprise to implement the pattern that best suites business needs for the specific scenario; 6. A Web-based toolset that allows configuration, management and deployment via Web-based technologies allowing geographical indifference for application deployment and integration. While discussing these challenges with a large Fortune 500 client, they expressed the need for an enhanced data integration toolset that would allow them to accomplish such tasks. Given this request, the Object Process Methodology (OPM) and the Opcat toolset were used to begin design of a data integration toolset that could fulfill these needs. As part of this design process, lessons learned covering both the use of OPM in software design projects as well as enhancement requests for the Opcat toolset were documented.
by Greg Wilmer.
S.M. in Engineering and Management
Wölkl, Stefan Josef [Verfasser], Kristina [Akademischer Betreuer] Shea, and Birgit [Akademischer Betreuer] Vogel-Heuser. "Model Libraries for Conceptual Design / Stefan Josef Wölkl. Gutachter: Kristina Shea ; Birgit Vogel-Heuser. Betreuer: Kristina Shea." München : Universitätsbibliothek der TU München, 2013. http://d-nb.info/1034420720/34.
Full textAssad, Albert. "Model of medical supply demand and astronaut health for long-duration human space flight." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/47867.
Full textIncludes bibliographical references (leaves 57-60).
The medical care of space crews is the primary limiting factor in the achievement of long-duration space missions. (Nicogossian 2003) The goal of this thesis was to develop a model of long-duration human space flight astronaut health and a medical supply demand model in support of such missions. This model will be integrated into an existing comprehensive interplanetary supply chain management and logistics architecture simulation and optimization tool, SpaceNet. The model provides two outputs, Alphah and Mass, for each set of input variables. Alphah is an estimate of crew health and is displayed as a percentage. Mass is a measure of medical consumables expended during the mission and is displayed in kilograms. We have demonstrated that Alphah is a function of three scaling parameters, the type of mission, duration of mission, and gender of crew. The type of mission and gender are linked to radiation fatality data published by NASA and mission duration correlates to predicted incidence of illness and injury and linked to the model through published US Navy submarine crew medical data. The mass of medical consumables (MMC) expended increases with the number of crew, the duration of the mission and the distance of the mission away from the earth. The degree of medical expertise on-board is not necessarily related to a change in consumption of medical supplies but perhaps to a better outcome for the individual infirmed crew member.
(cont.) We have determined that there is no information to incorporate gender into this aspect of the model and that the ages of the crewmembers would also have a negligible effect. Risk was investigated as an additional independent driver in the calculations. This parameter defined as likelihood of a medical event multiplied by impact to the mission, is in line with current NASA planning processes. Although the equations don't currently incorporate this parameter, implementation in subsequent versions of the model would allow for a more granular description of medical supply mass (i.e. laboratory and diagnostic, imaging, medications, surgical supplies, telemedicine and expert systems equipment) needed to support long-duration human operations in space. The framework of SpaceNet does not currently allow for this level of detail but future version of the software would likely develop and integrate this capability.
by Albert Assad.
S.M.
Mokhtari, Dizaji Reza 1968. "Business model transformation for the international division of a fortune 100 high technology company." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43116.
Full textIncludes bibliographical references (p. 123-127).
Raytheon Canada in Waterloo, Ontario offers a very interesting but challenging research case. As one of the international divisions of Raytheon Corporation, the company has a business model similar to its parent company. The company however is facing new trends in its business environment which have characteristics different than those of its parent company. The main focus of this thesis is to identify the key missing elements in the company's current business model and propose solutions in order to assist the company to adopt the best strategy to successfully operate in this evolving market.The company's interactions with the rest of Raytheon are limited due to the recent tightening of ITAR regulations. Although the company's organization structure is still tightly integrated to the rest of Raytheon, Raytheon US restricts the company's access to the best practice from the rest of the corporation in US. Another interesting observation relates to the company's two major product lines. ATM, Raytheon Canada's legacy product line is being disrupted by the recent arrival of ADS-B technology. This new technology has the potential of providing a major threat to company's sustainability. At the same time Raytheon Canada is introducing HFSWR, which is a disruptive technology, to maritime surveillance market. The company is facing the challenges of commercializing this breakthrough technology to a highly regulated and fragmented market. Raytheon Canada needs to operate in this complex business environment. This makes the company a remarkable research case for analyzing its current business model and ways to improve it through integrating the latest business knowledge from both industry and academia.
(cont) The goal of the thesis is to assist Raytheon Canada to transform its business model by determining the key characteristics of its future business model through detailed assessment of the company's current business model and study of the enterprise future business environment. This is obtained by studying the market research data, the strategic goals of parent company, trends in the technology and product landscape, and the customer behavior. Solutions are proposed for developing a realistic roadmap to transform the current business model of the company to address the future business environment challenges.
by Reza Mokhtari-Dizaji.
S.M.
Smith, Clifford A. (Clifford Allen) 1972. "Simulation model used as design improvement decision tool for warehouse material flow." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34830.
Full textIncludes bibliographical references (p. 109-110).
The basis for this thesis involved a six and a half month LFM internship at Efficient Storage, Shipping, and Selection. ES3, Efficient Storage, Shipping, and Selection, is a third party logistics firm that specializes in a vendor-neutral consolidation model for the food distribution industry. ES3 receives, stores, and ships multi-vendor products through a distribution center (DC) in York, Pennsylvania. The product is moved and stored by an Automated Storage and Retrieval System (ASRS) which consists of a network of conveyors, vertical lifts, and Selection and Retrieval Machines (SRMs). The ASRS system is not performing to the designed put-away and shipping rates, thus limiting the DC's overall performance during peak operations. The warehouse operations and warehouse design teams had numerous design suggestions for improving the ASRS operations, but it was difficult to predict the enhancement or impact on performance. A simulation model for the inbound system was created to analyze the impact, prioritize, and develop new ideas for improving the system.
by Clifford A. Smith.
S.M.
M.B.A.