1,096 research outputs found

    Analysis and design of virtual enterprises

    Get PDF
    Virtual Enterprise (VE) is an organizational business concept. Its key ingredients are collaboration among a set of member companies and integration of their competencies, which are needed for developing a new product or service. This concept is in response to the ever-increasing demand on the manufacturing enterprise to react quickly to changes in the market conditions and become agile enterprises. This thesis presents a quantitative study on the life cycle of Virtual Enterprises. Specifically, it covers the design and management phases. These two phases are modeled using system engineering as a foundation. This has led to the development of two new methods for designing and managing Virtual Enterprises. The design method uses Axiomatic Design Theory and a methodology for complex large systems. The management method is based on the Robust Design principles

    A systematic methodology to analyse the performance and design configurations of business interoperability in cooperative industrial networks

    Get PDF
    This thesis proposes a methodology for modelling business interoperability in a context of cooperative industrial networks. The purpose is to develop a methodology that enables the design of cooperative industrial network platforms that are able to deliver business interoperability and the analysis of its impact on the performance of these platforms. To achieve the proposed objective, two modelling tools have been employed: the Axiomatic Design Theory for the design of interoperable platforms; and Agent-Based Simulation for the analysis of the impact of business interoperability. The sequence of the application of the two modelling tools depends on the scenario under analysis, i.e. whether the cooperative industrial network platform exists or not. If the cooperative industrial network platform does not exist, the methodology suggests first the application of the Axiomatic Design Theory to design different configurations of interoperable cooperative industrial network platforms, and then the use of Agent-Based Simulation to analyse or predict the business interoperability and operational performance of the designed configurations. Otherwise, one should start by analysing the performance of the existing platform and based on the achieved results, decide whether it is necessary to redesign it or not. If the redesign is needed, simulation is once again used to predict the performance of the redesigned platform. To explain how those two modelling tools can be applied in practice, a theoretical modelling framework, a theoretical Axiomatic Design model and a theoretical Agent-Based Simulation model are proposed. To demonstrate the applicability of the proposed methodology and/or to validate the proposed theoretical models, a case study regarding a Portuguese Reverse Logistics cooperative network (Valorpneu network) and a case study regarding a Portuguese construction project (Dam Baixo Sabor network) are presented. The findings of the application of the proposed methodology to these two case studies suggest that indeed the Axiomatic Design Theory can effectively contribute in the design of interoperable cooperative industrial network platforms and that Agent-Based Simulation provides an effective set of tools for analysing the impact of business interoperability on the performance of those platforms. However, these conclusions cannot be generalised as only two case studies have been carried out. In terms of relevance to theory, this is the first time that the network effect is addressed in the analysis of the impact of business interoperability on the performance of networked companies and also the first time that a holistic approach is proposed to design interoperable cooperative industrial network platforms. Regarding the practical implications, the proposed methodology is intended to provide industrial managers a management tool that can guide them easily, and in practical and systematic way, in the design of configurations of interoperable cooperative industrial network platforms and/or in the analysis of the impact of business interoperability on the performance of their companies and the networks where their companies operate

    Enterprise Engineering and Management at the Crossroads

    Get PDF
    The article provides an overview of the challenges and the state of the art of the discipline of Enterprise Architecture (EA), with emphasis on the challenges and future development opportunities of the underlying Information System (IS), and its IT implementation, the Enterprise Information System (EIS). The first challenge is to overcome the narrowness of scope of present practice in IS and EA, and re-gain the coverage of the entire business on all levels of management, and a holistic and systemic coverage of the enterprise as an economic entity in its social and ecological environment. The second challenge is how to face the problems caused by complexity that limit the controllability and manageability of the enterprise as a system. The third challenge is connected with the complexity problem, and describes fundamental issues of sustainability and viability. Following from the third, the fourth challenge is to identify modes of survival for systems, and dynamic system architectures that evolve and are resilient to changes of the environment in which they live. The state of the art section provides pointers to possible radical changes to models, methodologies, theories and tools in EIS design and implementation, with the potential to solve these grand challenges.Griffith Sciences, School of Information and Communication TechnologyNo Full Tex

    CPPS-3D: a methodology to support cyber physical production systems design, development and deployment

    Get PDF
    Master’s dissertation in Production EngineeringCyber-Physical Production Systems are widely recognized as the key to unlock the full potential benefits of the Industry 4.0 paradigm. Cyber-Physical Production Systems Design, Development and Deployment methodology is a systematic approach in assessing necessities, identifying gaps and then designing, developing and deploying solutions to fill such gaps. It aims to support and drive enterprise’s evolution to the new working environment promoted by the availability of Industry 4.0 paradigms and technologies while challenged by the need to increment a continuous improvement culture. The proposed methodology considers the different dimensions within enterprises related with their levels of organization, competencies and technology. It is a two-phased sequentially-stepped process to enable discussion, reflection/reasoning, decision-making and action-taking towards evolution. The first phase assesses an enterprise across its Organizational, Technological and Human dimensions. The second phase establishes sequential tasks to successfully deploy solutions. Is was applied to a production section at a Portuguese enterprise with the development of a new visual management system to enable shop floor management. This development is presented as an example of Industry 4.0 technology and it promotes a faster decision-making, better production management, improved data availability as well as fosters more dynamic workplaces with enhanced reactivity to problems

    Architecting a System Model for Personalized Healthcare Delivery and Managed Individual Health Outcomes

    Get PDF
    In recent years, healthcare needs have shifted from treating acute conditions to meeting an unprecedented chronic disease burden. The healthcare delivery system has structurally evolved to address two primary features of acute care: the relatively short time period, on the order of a patient encounter, and the siloed focus on organs or organ systems, thereby operationally fragmenting and providing care by organ specialty. Much more so than acute conditions, chronic disease involves multiple health factors with complex interactions between them over a prolonged period of time necessitating a healthcare delivery model that is personalized to achieve individual health outcomes. Using the current acute-based healthcare delivery system to address and provide care to patients with chronic disease has led to significant complexity in the healthcare delivery system. This presents a formidable systems’ challenge where the state of the healthcare delivery system must be coordinated over many years or decades with the health state of each individual that seeks care for their chronic conditions. This paper architects a system model for personalized healthcare delivery and managed individual health outcomes. To ground the discussion, the work builds upon recent structural analysis of mass-customized production systems as an analogous system and then highlights the stochastic evolution of an individual’s health state as a key distinguishing feature

    Design and Planning of Manufacturing Networks for Mass Customisation and Personalisation: Challenges and Outlook

    Get PDF
    AbstractManufacturers and service providers are called to design, plan and operate globalized manufacturing networks, addressing to challenges such as ever-decreasing lifecycles and increased product complexity. These factors, caused primarily by mass customisation and demand volatility, generate a number of issues related to the design and planning of manufacturing systems and networks, which are not holistically tackled in industrial and academic practices. The mapping of production performance requirements to process and production planning requires automated closed-loop control systems, which current systems fail to deliver. Technology-based business approaches are an enabler for increased enterprise performance. Towards that end, the issues discussed in this paper focus on challenges in the design and planning of manufacturing networks in a mass customization and personalization landscape. The development of methods and tools for supporting the dynamic configuration and optimal routing of manufacturing networks and facilities under cost, time, complexity and environmental constraints to support product-service personalization are promoted

    The decisive reset: attainable governance for revitalising democracy

    Get PDF
    To improve democratic legitimacy, successful resolution of public policy challenges has to emerge from highly pressurised political predicaments. Increasing civic functionality requires integrative Civil Service practice, building trust in adaptive oversight. With the task of effective governance stretching out-of-reach in straining institutional arrangements, a proposition is developed for an “Attainable Governance” reset to revitalise democracy. Motivated by the need for progress that is sensitive to the reality and risks of the present and embodying requirements to hold open unforeseen possibilities for future action, the groundwork is laid for a new “decision architecture” that improves policy-framing and decision-making. With a mission to compose a conceptual framework for “facing the future” in the United Kingdom, I make the case for refreshing democratic arrangements, including a proposed structural intervention to the policy-making system with a correlative cultural step-change in leadership. Laying out a novel framework, the analysis draws widely on strands of thinking in social theory and political philosophy, public administration and policy-making, systems thinking and design, planning and strategic management, anticipation and futures, economics, and sociology. Taking an “integral” methodological orientation, in three parts I: (1) diagnose the converging Predicament, (2) develop a conceptual Proposition, and 3) sketch-out an approach to leadership that facilitates operational adaption in Procedures for applied practice. Positing that we have to deal with systems-of-problems (“messes”) and system-of-systems (“systemic messes”) with an analytic primacy on expanding temporal considerations to factor in more anticipative insights, I take a Complex Adaptive Systems-informed stance. The need for a “Decisive Reset” to refresh democracy, featuring phased systemic reordering and tactical modularity to produce better public decision-making that is responsive and agile in the short-run, while actively gauging medium-term realities and future-proofing for long-run uncertainties, results in a new decision architecture and methodology

    Multi-process modelling approach to complex organisation design

    Get PDF
    Present day markets require manufacturing enterprises (MEs) to be designed and run in a flexibly structured yet optimised way. However, contemporary approaches to ME engineering do not enable this requirement to capture ME attributes such that suitable processes, resource systems and support services can be readily implemented and changed. This study has developed and prototyped a model-driven environment for the design, optimisation and control of MEs with an embedded capability to handle various types of change. This so called Enriched-Process Modelling (E-MPM) Environment can support the engineering of strategic, tactical and operational processes and comprises two parts: (1) an E-MPM Method that informs, structures, and guides modelling activities required at different stages of ME systems design; and (2) an E-MPM Modelling Framework that specifies interconnections between modelling concepts necessary for the design and run time operation of ME systems. [Continues.
    • …
    corecore