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‣ Problems of organizational structure in C3 systems

Fonte: Laboratory for Information and Decision Systems, Massachusetts Institute of Technology Publicador: Laboratory for Information and Decision Systems, Massachusetts Institute of Technology
Formato: [ii, 9] leaves; application/pdf
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by Alexander H. Levis.; Bibliography: p. 54.; "March, 1982."; With: On modeling teams of interacting decisionmakers with bounded rationality / Alexander H. Levis, Kevin L. Boettcher. Cambridge, Mass. : Laboratory for Information and Decision Systems, Massachusetts Institute of Technology, [1982]; NASA Grant No. NAG1-2

‣ Proceedings of the Fourth MIT/ONR Workshop on Distributed Information and Decision Systems Motivated by Command-Control-Communications (C3) Problems, June 15-June 26, 1981, San Diego, California

Fonte: Laboratory for Information and Decision Systems, Massachusetts Institute of Technology Publicador: Laboratory for Information and Decision Systems, Massachusetts Institute of Technology
Formato: 4 v.; application/pdf
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v.1. Surveillance and target tracking--v.2. Systems architecture and evaluation--v.3. Communication, data bases & decision support--v.4. C3 theory.; edited by Michael Athans ... [et al.].; Includes bibliographies.; Library has v. 2 only.; "OSP number 85552"--Cover.; Workshop suppported by the Office of Naval Research under contract ONR/N00014-77-C-0532

‣ Proceedings of the Fourth MIT/ONR Workshop on Distributed Information and Decision Systems Motivated by Command-Control-Communications (C3) Problems, June 15-June 26, 1981, San Diego, California

Fonte: Laboratory for Information and Decision Systems, Massachusetts Institute of Technology Publicador: Laboratory for Information and Decision Systems, Massachusetts Institute of Technology
Formato: 4 v.; application/pdf
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v.1. Surveillance and target tracking--v.2. Systems architecture and evaluation--v.3. Communication, data bases & decision support--v.4. C3 theory.; edited by Michael Athans ... [et al.].; Includes bibliographies.; Library has v. 2 only.; "OSP number 85552"--Cover.; Workshop suppported by the Office of Naval Research under contract ONR/N00014-77-C-0532

‣ Proceedings of the Fourth MIT/ONR Workshop on Distributed Information and Decision Systems Motivated by Command-Control-Communications (C3) Problems, June 15-June 26, 1981, San Diego, California

Fonte: Laboratory for Information and Decision Systems, Massachusetts Institute of Technology Publicador: Laboratory for Information and Decision Systems, Massachusetts Institute of Technology
Formato: 4 v.; application/pdf
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v.1. Surveillance and target tracking--v.2. Systems architecture and evaluation--v.3. Communication, data bases & decision support--v.4. C3 theory.; edited by Michael Athans ... [et al.].; Includes bibliographies.; Library has v. 2 only.; "OSP number 85552"--Cover.; Workshop suppported by the Office of Naval Research under contract ONR/N00014-77-C-0532

‣ Status report number ..., on the development of a methodology for the detection of system failures and for the design of fault-tolerant control systems.; On the development of a methodology for the detection of system failures and for the design of fault-tolerant control systems

Fonte: Electronic Systems Laboratory, Massachusetts Institute of Technology Publicador: Electronic Systems Laboratory, Massachusetts Institute of Technology
Formato: v.; application/pdf
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Prepared for the Office of Naval Research on ONR Contract no. N00014-77-C-0224. Issued by: M.I.T. Electronic Systems Laboratory, 1977; M.I.T. Laboratory for Information and Decision Systems, 1978-

‣ Status report number ..., on the development of a methodology for the detection of system failures and for the design of fault-tolerant control systems.; On the development of a methodology for the detection of system failures and for the design of fault-tolerant control systems

Fonte: Electronic Systems Laboratory, Massachusetts Institute of Technology Publicador: Electronic Systems Laboratory, Massachusetts Institute of Technology
Formato: v.; application/pdf
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Prepared for the Office of Naval Research on ONR Contract no. N00014-77-C-0224. Issued by: M.I.T. Electronic Systems Laboratory, 1977; M.I.T. Laboratory for Information and Decision Systems, 1978-

‣ The impact of intelligent transportation systems on supply chain management

Beinhaker, Ross, 1978-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 195 leaves; 9987423 bytes; 10012520 bytes; application/pdf; application/pdf
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Businesses are constantly searching for ways to reduce costs and increase revenue. This is a fact of life in a world where shareholder value drives corporate actions. In order to become more profitable, these businesses develop new processes and techniques to create efficiency. This paper is focused on one particular new technology that can be used to increase corporate profitability--intelligent transportation systems. The primary research objective of this thesis is to determine the impact that differing levels of information can have on transportation practices, and therefore, in turn on corporate profitability. This information is collected, analyzed, and disseminated through the use of intelligent transportation systems. The end result of this work is a quantification of this impact and conclusions related to which informational practices should be implemented into the supply chain. An experimental setup is designed that uses the Los Angeles Highway System as a test-bed. Traffic data is collected on this network over a two-week period. This data is used as the foundation to perform a series of simulations using differing levels of information. Each of these information levels is compared to a baseline to yield a % time savings. Next...

‣ Multiobjective collaborative optimization of systems of systems; Multi objective collaborative optimization of systems of systems

Wolf, Robert A. (Robert Allen)
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 166 p.; 9303014 bytes; 9309978 bytes; application/pdf; application/pdf
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Concept studies for warship designs typically focus on ship performance characteristics by setting design goals for such things as speed, range, and cost. However, warships generally operate as part of a larger battle or strike group. Therefore, the designs should be evaluated as part of a system of multiple ship systems since designing each ship individually may result in underutilized and excess equipment and capability; in other words an inefficient design of the system of systems. This thesis examines the simultaneous design of several ships using the sea base concept as an example application of a network of ships working together. The number and characteristics of these ships determine the mission performance of the sea base. To properly design any of the sea base ships, the interrelationships must be included. A mission simulation is used to combine the performance characteristics of different ship designs into a single performance objective: the time to deliver a brigade size combat force to its assigned objectives.; (cont.) To enable the design of multiple ships, collaborative optimization, a multilevel optimization approach, was used to decompose the problem into individual ship design optimizations with system level interfaces controlled by a system of systems optimization algorithm. This allowed each ship to use techniques and algorithms best suited to reach an optimal design without impacting the design approaches used by the other ships. The classical collaborative optimization approach was relaxed to include multiple objectives such as performance and cost...

‣ A systems-theoretic security model for large scale, complex systems applied to the US air transportation system; systems-theoretic security model for large scale, complex systems applied to the US air transportation system

Laracy, Joseph R. (Joseph Raymond)
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 132 p.
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Classical risk-based or game-theoretic security models rely on assumptions from reliability theory and rational expectations economics that are not applicable to security threats. Additionally, these models suffer from serious deficiencies when they are applied to software-intensive, socio-technical systems. Recent work by Leveson in the area of system safety engineering has led to the development of a new accident model for system safety that acknowledges the dynamic complexity of accidents. Systems-Theoretic Accident Models and Processes (STAMP) applies principles from control theory to enforce constraints on hazards and thereby prevent accidents. Appreciating the similarities between safety and security while still acknowledging the differences, this thesis extends STAMP to security problems. In particular, it is applied to identify and mitigate the threats that could emerge in critical infrastructures such as the Air Transportation System. Furthermore, recommendations are provided to assist systems engineers and policy makers in securely transitioning to the Next Generation Air Transportation System (NGATS).; by Joseph R. Laracy.; Thesis (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division, 2007.; This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.; Includes bibliographical references (p. 129-132).

‣ Enabling systems thinking to accelerate the development of senior systems engineers

Davidz, Heidi L
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 440 p.
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As engineering systems become more complex, the roles involved in developing and managing such systems also become more complex. Thus, there is increasing interest in educating and training engineering professionals to think more systemically. In particular, there is an increasing need to accelerate the development of senior systems engineers. As new educational degree programs in systems rapidly emerge and as companies scurry to establish systems training programs to meet this need, fundamental questions still remain about how systems thinking develops in engineers. Increased understanding of the mechanisms that develop systems thinking will enable effective and efficient development of senior systems professionals. After reviewing related literature, an exploratory and inductive study was designed to gather data on enablers, barriers, and precursors to systems thinking development in engineers. In a field study conducted primarily in the United States aerospace sector, 205 interviews were conducted in 10 host companies. Senior systems engineers were studied to better understand how they developed systems thinking, and information was collected on company procedures for developing systems engineers. Using interview and survey data...

‣ Qualitative knowledge construction for engineering systems : extending the design structure matrix methodology in scope and procedure

Bartolomei, Jason E
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 191 leaves
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This thesis presents a new modeling framework and research methodology for the study of engineering systems. The thesis begins with a formal conceptualization of Engineering Systems based upon a synthesis of various literatures. Using this conceptualization, a new modeling framework is presented called the Engineering Systems Matrix (ESM). The ESM is an improvement to existing system-level modeling frameworks, such as the Design Structure Matrix (DSM), by providing a dynamic, end-to-end representation of an engineering system. In support of this contribution, a new research methodology is presented called Qualitative Knowledge Construction (QKC). QKC can be thought of as a Bayesian-type approach to grounded theory. The methodology integrates qualitative social science with quantitative methods by developing a procedure for translating textual reports of observations, interview transcripts, system documentation, and figures into coded data represented in the ESM. The thesis develops the ESM framework and the QKC methodology in the context of a real world engineering system, a US Air Force miniature uninhabited air vehicle (MAV) product development system.; by Jason E. Bartolomei.; Thesis (Ph. D.)--Massachusetts Institute of Technology...

‣ Soil chemical attributes for different land-use systems in semi arid region.

TONUCCI, R. G.; PRIMO, A. A.; MELO, M. D.; VIEIRA, L. V.; FERNANDES, J. K. S.; SOUZA, H. A. de
Fonte: In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa, 2015. Publicador: In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa, 2015.
Tipo: Resumo em anais de congresso (ALICE)
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Introduction the evaluation of soil fertility in already placed agroforestry systems allows inferences of greater managements practices and nutrient cycling. In the semi arid region the use of integrated systems provides optimization of land and the efficient use of resources, thus becomes preponderant know soil chemical properties to assist in soil management. It aimed to evaluate soil chemical properties of agroforestry systems already placed.; 2015

‣ Trees and grass contribution to soil organic carbon in agroforestry systems.

TONUCCI, R. G.; GARCIA, R.; NAIR, V.
Fonte: In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa, 2015. Publicador: In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa, 2015.
Tipo: Resumo em anais de congresso (ALICE)
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Agroforestry systems have the potential to enhance carbon (C) sequestration in soil compared with treeless (agricultural) systems (Montagnini & Nair, 2004). When one type of vegetation is replaced with another, stable isotope contents (?13 C) values can be used to identify soil organic carbon (SOC) derived from residues in the native vegetation and the new vegetation based on discrimination between C3 and C4 plants. The present study aimed to assessing the impact of difference land-use systems on C3 and C4 contribution to SOC. The experimental area is located inside the Cerrado biome. Soil samples were taken from six different land-use sites: (i) native local forest; (ii) Eucalyptus forest (EF) established in 1985 (OEC); (iii) EF established in 2004 (NEC); (iv) pasture of B. decumbens; (v) Agroforestry System (AF) established on 1994 (OAF); and (vi) AF established on 2004 (NAF). The establishment on AF was placed first with the eucalyptus planted and rice (Oryza sativa), soybean (Glycine max) and braquiaria grass (B. Brizantha cv. Marandu) in between trees rows. Soil was collected from four depths (0-10; 10-20; 20-50 and 50-100 cm). For stable C isotope analysis, whole soil was analyzed mass spectrometer. The percentage of SOC derived from the Brachiaria ssp....

‣ A systems thinking approach to identify leverage points for sustainability: a case study in the Cat Ba biosphere reserve, Vietnam

Nguyen, N.; Bosch, O.
Fonte: International Society for the Systems Sciences Business Publicador: International Society for the Systems Sciences Business
Tipo: Conference paper
Publicado em //2012 Português
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The nature and practice of sustainability is very complex, multi-dimensional and dynamic. Traditional and reductionist approaches have shown their inability to address sustainability issues. Increasing complex issues and challenges related to sustainability requires a fresh approach to address the multi-dimensional and multi-disciplinary nature of complexity. In this paper, systems thinking is used in a case study in a UNESCO designated Biosphere Reserve to demonstrate its application to effectively address complex and sustainability issues. A systems model has been developed and various tools, processes and techniques of systems thinking have been used in the study. The systems model and its associated systems archetypes are qualitatively analysed to provide insights into potential system behaviours and to facilitate the identification of leverage points and systemic intervention strategies that are required for the sustainable development of the Biosphere. The unique approach used in this study has significant potential to apply globally considering the comprehensive network of Biosphere Reserves around the world, as well as the various sustainability and other complex issues that our society is facing.; http://isss.org/conferences/sanjose-2012/2012-ISSS-Program-Book.pdf; Ockie J.H. Bosch and Nam C. Nguyen

‣ Education in Complex Systems for Systems Engineers [Paper and Presentation included] [NDIA 15th Annual Systems Engineering Conference, Paper 14597]

Miller, Gregory A.
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
Tipo: Presentation; Working Paper
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Attached is a paper as well as a presentation - - Note that this presentation came from this conference: 15th ANNUAL SYSTEMS ENGINEERING CONFERENCE, OCTOBER 22 - 25, 2012, SAN DIEGO, CA More information is here: http://www.dtic.mil/ndia/2012system/; This paper explores the potential benefits and disadvantages associated with providing a course (or part of a course) in complex systems as part of a systems engineering graduate degree program. An overview of systems engineering education programs and a history of SE curricular design provides context for this exploration. Curriculums other than systems engineering that include courses in complexity, nonlinear dynamics, emergence, chaos, decentralized synchronization through stigmergy, scale-free networks and related topics are also examined. The application of these concepts to design problems is assessed, particularly for engineers in the defense domain. Complex systems learning objectives tailored for systems engineers are proposed. Finally, a framework on which to base a trade-off analysis to determine if such topics should be included in an existing or developing graduate degree program is recommended.

‣ Chameleon C2HDL Design Tool In Self-Configurable Ultrascale Computer Systems Based On Partially Reconfigurable FPGAs

Melnyk, Anatoliy; Melnyk, Viktor; Tsyhylyk, Lyubomyr
Fonte: Universidade Carlos III de Madrid Publicador: Universidade Carlos III de Madrid
Tipo: info:eu-repo/semantics/publishedVersion; info:eu-repo/semantics/bookPart; info:eu-repo/semantics/conferenceObject
Publicado em /10/2015 Português
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The FPGA-based accelerators and reconfigurable computer systems based on them require designing the applicationspecific processors soft-cores and are effective for certain classes of problems only, for which these soft-cores were previously developed. In Self-Configurable FPGA-based Computer Systems the challenge of designing the application-specific processors soft-cores is solved with use of the C2HDL tools, allowing them to be generated automatically. In this paper, we study the questions of the self-configurable computer systems efficiency increasing with use of the partially reconfigurable FPGAs and Chameleonc C2HDL design tool, corresponding to the goals of the project entitled "Improvement of heterogeneous systems efficiency using self-configurable FPGA-based computing" which is a part of the NESUS action. One of the features of the Chameleonc C2HDL design tool is its ability to generate a number of application-specific processors soft-cores executing the same algorithm that differ by the amount of FPGA resources required for their implementation. If the self-configurable computer systems are based on partially reconfigurable FPGAs, this feature allows them to acquire in every moment of its operation such a configuration that will provide an optimal use of its reconfigurable logic at a given level of hardware multitasking.; Proceedings of: Second International Workshop on Sustainable Ultrascale Computing Systems (NESUS 2015). Krakow (Poland)...

‣ Modeling Kanban Processes in Systems Engineering

Turner, Richard; Madachy, Raymond; Ingold, Dan; Lane, Jo Ann
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
Tipo: Artigo de Revista Científica
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Systems engineering processes using pull scheduling methods (kanban) are being evaluated with hybrid modeling and simulation. We are assessing integrated systems and software engineering at the enterprise level, where rapid response software development projects incrementally evolve capabilities of existing systems and/or systems of systems. A kanban-based scheduling system was defined and implemented with connected discrete, continuous and agent-based models. We are simulating the process performance vs. traditional methods of sharing systems engineering services across projects, and whether the overall value of the systems of systems over time is increased.; This material is based upon work supported, in whole or in part, by the U.S. Department of Defense through the Systems Engineering Research Center (SERC) under Contract H98230-08-D-0171. SERC is a federally funded University Affiliated Research Center managed by Stevens Institute of Technology.

‣ Study of software tools to support systems engineering management

Shchupak, Peter
Fonte: Monterey, California: Naval Postgraduate School Publicador: Monterey, California: Naval Postgraduate School
Tipo: Tese de Doutorado
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Approved for public release; distribution is unlimited; According to a 2010 Government Accountability Office (GAO) report, major system acquisitions within the Department of Defense (DOD) tend to be behind schedule, over budget, and often fail to deliver at least some of the planned capabilities. One area that can significantly contribute to successful implementation of systems engineering is the regular usage of management software tools and their continued evolution to better meet systems engineering needs. This thesis provides a detailed exploration of four categories of available system engineering management tools: Model-Based Systems Engineering (MBSE), Product Life Cycle Management (PLM), Systems Engineering Environment (SEE), and Project Management software. Each tool has numerous features that support successful systems engineering. However, there does not seem to be a consolidated commercially available tool or system that allows for seamless management of systems engineering projects across all of the process areas. Drawing upon these existing tools and the International Council on Systems Engineering (INCOSE) processes, this thesis derives a set of requirements for such a consolidated systems engineering management tool. This research can serve as the starting point for a follow-on effort to develop such a tool.; ; Space and Naval Warfare Systems Center Pacific

‣ Can advancements in economic and managerial practice be achieved without systems thinking education as the foundation?

Bosch, O.; Nguyen, N.; Ha, T.
Fonte: Business Systems Laboratory Publicador: Business Systems Laboratory
Tipo: Artigo de Revista Científica
Publicado em //2014 Português
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Complex economic and managerial problems cannot be solved anymore with traditional single discipline and linear thinking mindsets. Employers will therefore increasingly require their employees to have the capacity to redesign in systems and sustainability terms. In other words, there is an increasing demand for society to move away from linear thinking that often leads to “quick fixes” that do not last, to a new way of thinking that is systems-based. Understanding the principles of interconnectedness, feedback and leverage points in systems and appreciating the value of cross-sectoral/disciplinary communication and collaboration are the only ways in which society will be able to find long lasting, sustainable solutions to the many problems we are facing. Developing such an understanding in order to address complex economic and managerial challenges, requires a strong level of awareness of the value of knowledge on systems approaches and tools that will increase the demand for systems education. However, it is evident in many institutions worldwide that the establishment of systems education is a highly complex task. The Evolutionary Learning Laboratory (ELLab) for dealing with complex issues was therefore used to establish an ELLab for systems education in the Adelaide University Business School. This caused a revolution regarding the integration of systems concepts into discipline specific courses and the development of standalone core systems courses that will help to instill those graduate attributes that industry wants. The ELLab consists of seven steps...

‣ Addressing Navy's Information Dominance Warfare through Systems of Systems Engineering and Integration [NDIA 15th Annual Systems Engineering Conference, October 22-25, 2012, San Diego, CA]

Vaneman, Warren K.; Budka, Richard
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
Tipo: Conferência ou Objeto de Conferência
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Presentation made by Dr. Warren K. Vaneman, Naval Postgraduate School & Richard Budka, Customer Inspired Solutions, LLC. Provided to: NDIA 15th Annual Systems Engineering Conference Net Centric Operations / Interoperability Track & System of Systems Track.