236,460 research outputs found

    Second Generation General System Theory: Perspectives in Philosophy and Approaches in Complex Systems

    Get PDF
    Following the classical work of Norbert Wiener, Ross Ashby, Ludwig von Bertalanffy and many others, the concept of System has been elaborated in different disciplinary fields, allowing interdisciplinary approaches in areas such as Physics, Biology, Chemistry, Cognitive Science, Economics, Engineering, Social Sciences, Mathematics, Medicine, Artificial Intelligence, and Philosophy. The new challenge of Complexity and Emergence has made the concept of System even more relevant to the study of problems with high contextuality. This Special Issue focuses on the nature of new problems arising from the study and modelling of complexity, their eventual common aspects, properties and approaches—already partially considered by different disciplines—as well as focusing on new, possibly unitary, theoretical frameworks. This Special Issue aims to introduce fresh impetus into systems research when the possible detection and correction of mistakes require the development of new knowledge. This book contains contributions presenting new approaches and results, problems and proposals. The context is an interdisciplinary framework dealing, in order, with electronic engineering problems; the problem of the observer; transdisciplinarity; problems of organised complexity; theoretical incompleteness; design of digital systems in a user-centred way; reaction networks as a framework for systems modelling; emergence of a stable system in reaction networks; emergence at the fundamental systems level; behavioural realization of memoryless functions

    The systems engineering overview and process (from the Systems Engineering Management Guide, 1990)

    Get PDF
    The past several decades have seen the rise of large, highly interactive systems that are on the forward edge of technology. As a result of this growth and the increased usage of digital systems (computers and software), the concept of systems engineering has gained increasing attention. Some of this attention is no doubt due to large program failures which possibly could have been avoided, or at least mitigated, through the use of systems engineering principles. The complexity of modern day weapon systems requires conscious application of systems engineering concepts to ensure producible, operable and supportable systems that satisfy mission requirements. Although many authors have traced the roots of systems engineering to earlier dates, the initial formalization of the systems engineering process for military development began to surface in the mid-1950s on the ballistic missile programs. These early ballistic missile development programs marked the emergence of engineering discipline 'specialists' which has since continued to grow. Each of these specialties not only has a need to take data from the overall development process, but also to supply data, in the form of requirements and analysis results, to the process. A number of technical instructions, military standards and specifications, and manuals were developed as a result of these development programs. In particular, MILSTD-499 was issued in 1969 to assist both government and contractor personnel in defining the systems engineering effort in support of defense acquisition programs. This standard was updated to MIL-STD499A in 1974, and formed the foundation for current application of systems engineering principles to military development programs

    Endogenously Emergent Information Systems

    Get PDF
    This paper analyzes the concept of “emergence” in the context of information systems and discusses its implications to the IS research. The analysis shows that this literature as¬sumes emergence to be an outcome of exogenous, although, complex design agency, largely omitting endogenous emergence, rising from the complexity of the information system and its operational interaction with its environment. Reflecting the IS perspective, the paper reviews research on endogenous emergence conducted especially in Computer Science and Software Engineering

    ESD Symposium Comittee Overview: Engineering Systems Research and Practice

    Get PDF
    This paper briefly introduces the field of Engineering Systems, and highlights its emergence from engineering practice and academic engineering. This paper was prepared by the ESD Symposium Committee based upon its own discussions, by an analysis of the other Internal Symposium papers, and by interactions with their authors. This paper discusses: a framework for describing the field of engineering systems, and emphasizes a three-dimensional view the challenges emerging in engineering practice that are associated with the design of complex systems the methods that address research and practice problems (most of these methods currently exist, some must be developed) principles and fundamentals of engineering systems "Engineering systems are increasing in size, scope, and complexity as a result of globalization, new technological capabilities, rising consumer expectations, and increasing social requirements. Engineering systems present difficult design problems and require different problem solving frameworks than those of the traditional engineering science paradigm: in particular, a more integrative approach in which engineering systems professionals view technological systems as part of a larger whole. Though engineering systems are very varied, they often display similar behavior. New approaches, frameworks, and theories need to be developed to understand better engineering systems behavior and design.

    Cyber physical systems implementation for asset management improvement: A framework for the transition

    Get PDF
    Libro en Open AccessThe transformation of the industry due to recent technologies introduction is an evolving process whose engines are competitiveness and sustainability, understood in its broadest sense (environmental, economic and social). This process is facing, due to the current state of scientific and technological development, a new challenge yet even more important: the transition from discrete technological solutions that respond to isolated problems, to a global conception where the assets, plant, processes and engineering systems are conceived, designed and operated as an integrated complex unit. This vision is evolving besides a set of concepts that are, in some way, to guide this development: Smart Factories, Cyber-Physical Systems, Factory of the Future or Industry 4.0, are examples. The full integration of the operation and maintenance (O&M) processes in the production systems is a key topic within this new paradigm. Not only that, this evolution necessarily results in the emergence of new processes and needs of O&M, i.e. also, the O&M will undergo a profound transformation. The transition from actual isolated production assets to such Industry 4.0 with CPS is far from easy. This document presents a proposal to develop such transition adapting one iteration of the Model of Maintenance Management (MMM) integrated into ISO 55000 to the complexity of incorporating “System of Systems” CPSs maintenance. It involves several stages: identification, prioritization, risk management, planning, scheduling, execution, control, and improvement supported by system engineering techniques and agile/concurrent project managemen

    Risk and System-of-Systems: Toward a Unified Concept

    Get PDF
    The scope of this paper is the survey of both fundamental and most recent publications in system-of-systems, business and insurance, as well as risk analysis, modeling, and management for the purpose of better describing the concept of risk in recognition of emergence and complexity which characterizes many systems within the concern of engineering and business managers. The ultimate goal is to provide engineering and business managers the necessary perspective on the concept of risk and in its management for the next generation of sustainable systems - including various descriptions of risk and discussion of the relevance of properties of system-of-systems to sustainable management of risks in engineered systems. The result shows that to address a truly sustainable management of risk, there has to be a change in paradigm from traditional description of risk to that of a more holistic perspective

    Systems Engineering: Availability and Reliability

    Get PDF
    Current trends in Industry 4.0 are largely related to issues of reliability and availability. As a result of these trends and the complexity of engineering systems, research and development in this area needs to focus on new solutions in the integration of intelligent machines or systems, with an emphasis on changes in production processes aimed at increasing production efficiency or equipment reliability. The emergence of innovative technologies and new business models based on innovation, cooperation networks, and the enhancement of endogenous resources is assumed to be a strong contribution to the development of competitive economies all around the world. Innovation and engineering, focused on sustainability, reliability, and availability of resources, have a key role in this context. The scope of this Special Issue is closely associated to that of the ICIE’2020 conference. This conference and journal’s Special Issue is to present current innovations and engineering achievements of top world scientists and industrial practitioners in the thematic areas related to reliability and risk assessment, innovations in maintenance strategies, production process scheduling, management and maintenance or systems analysis, simulation, design and modelling
    • …
    corecore