5 research outputs found

    Federated approach for enterprise interoperability (a reversible model driven and HLA based methodology)

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    L'interopérabilité est une des caractéristiques requises pour les entreprises évoluant dans un marché globalisé à la concurrence croissante et complexe. Dans la dernière décennie, l'interopérabilité des entreprises a été développée et prescrite par différents types de cadres, de méthodes et de techniques. Cependant, le développement de l'interopérabilité n'est pas encore assez mature pour être considéré en tant que science à part entière. Par ailleurs, il ne cesse d'évoluer en fonction des besoins des entreprises,de leurs environnements et des différents secteurs d activité. Aujourd'hui, l'environnement s organise en réseaux multipleet provoque d imprévisibles situations liées à leurs dynamiques (création, modification, résilience). Ainsi l interopérabilité durable devient une dimension nouvelle de recherche pour l'interopérabilité des systèmes d'entreprise et de leurs domaines d'applications. Dans l'interopérabilité durable, l'interopérabilité d'entreprise dynamique est l'un des thèmes focaux. Cette approche dynamique, également appelée fédérée , est originaire du cadre d'interopérabilité de l'Entreprise proposée dans le Réseau d Excellence (NoE)INTEROP. Il vise à donner la capacité aux entreprises d établir une interopérabilité à la volée sans connaissance préalable des informations à échanger. Cette thèse présente l'état actuel des travaux qui se rapprochent du développement de l'interopérabilité des entreprises fédérés en dynamique. Ces travaux de thèse mettent tout d abord en évidence l intérêt de la redécouverte de modèles à partir d un système existant avant de concevoir un futur système. Une méthodologie de réverse engineering dirigée par les modèles et basée sur la norme de simulation distribuée HLA est proposée pour concevoir et développerpar l'approche fédérée d'interopérabilité le futur système d information de l entreprise. La phase de mise en œuvre réutilise les concepts d interopérabilité issusde la simulation distribuée pour faciliter et coordonner la communication entre les systèmes d'information distribués hétérogènes des entreprises en combinant avec les dernières orientation service actuelle du web. La plate-forme tend ainsi à satisfaire les attentes de la dernière version du standard de l'architecture de haut niveau HLA 1516 Evolved. Ce cadre propose donc un cycle complet de développement pour qui a l'intention de réutiliser un système d'information existant sans recoder ex-nilo, mais en l adaptant aux nouvelles exigences de la dynamique d'interopérabilité.Interoperability is one of the requisite features for existing enterprises in the increasing competitive and complex global market. In the last decade, enterprise interoperability has been developed and prescribed by various kinds of frameworks, methods, and techniques. However interoperability development is still not mature enough to become a science. Meanwhile, it keeps evolving according to different business requirement and market environment. Nowadays, networked environment causes unpredictable dynamical situations, thus sustainable interoperability becomes a new research dimension in the interoperability of enterprise systems and applications domain. In the sustainable interoperability, enterprise interoperability dynamics is one of the focal topics. This dynamic approach also called federated is originated from Enterprise Interoperability Framework of INTEROP NoE, which aims to establish interoperability on the fly. This thesis presents current state on federated approaches to develop enterprise interoperability dynamics. Based on this study, a reversible model driven and HLA based methodology is proposed for achieving federated approach for Enterprise Interoperability. It reuses distributed simulation interoperability concepts to facilitate and coordinate the communication between heterogeneous distributed information systems of the enterprises. The platform is complaint with the latest version of the High Level Architecture (HLA) that is a distributed communication standard. This framework is also proposing a development lifecycle that intends to reuse existing information systems without recoding them but by adapting them to the new requirements of interoperability dynamics.BORDEAUX1-Bib.electronique (335229901) / SudocSudocFranceF

    An Agile Roadmap for Live, Virtual and Constructive-Integrating Training Architecture (LVC-ITA): A Case Study Using a Component based Integrated Simulation Engine

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    Conducting seamless Live Virtual Constructive (LVC) simulation remains the most challenging issue of Modeling and Simulation (M&S). There is a lack of interoperability, limited reuse and loose integration between the Live, Virtual and/or Constructive assets across multiple Standard Simulation Architectures (SSAs). There have been various theoretical research endeavors about solving these problems but their solutions resulted in complex and inflexible integration, long user-usage time and high cost for LVC simulation. The goal of this research is to provide an Agile Roadmap for the Live Virtual Constructive-Integrating Training Architecture (LVC-ITA) that will address the above problems and introduce interoperable LVC simulation. Therefore, this research describes how the newest M&S technologies can be utilized for LVC simulation interoperability and integration. Then, we will examine the optimal procedure to develop an agile roadmap for the LVC-ITA. In addition, this research illustrated a case study using an Adaptive distributed parallel Simulation environment for Interoperable and reusable Model (AddSIM) that is a component based integrated simulation engine. The agile roadmap of the LVC-ITA that reflects the lessons learned from the case study will contribute to guide M&S communities to an efficient path to increase interaction of M&S simulation across systems

    Distributed Simulation in Industry

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    Csaba Attila Boer was born in Satu Mare, Romania, on 29 October, 1975. He completed his secondary education at Kölcsey Ferenc High School, in Satu Mare, in 1994. In the same year he started his higher education at Babeş-Bolyai University, Faculty of Mathematics and Computer Science, Cluj-Napoca, Romania, where he received his B.Sc. degree in Computer Science, in 1998, and his M.Sc. degree with major in Information Systems, specialization Designing and Implementing Complex Systems, in 1999. During these years, he obtained fellowships at the Eötvös Lóránd University, and at the Computer and Automation Research Institute of the Hungarian Academy of Sciences, Budapest, Hungary within the Central European Exchange Program for University Studies (CEEPUS). Since 1999, he has been affiliated with the Computer Science Department, Faculty of Economics at Erasmus University Rotterdam, The Netherlands. There, he worked as a researcher for one year, studying the storage and retrieval of discrete event simulation models, research that resulted in three scientific articles. Between 2000 and 2004, he was associated with the same department as a Ph.D. candidate aiming to research the area of distributed simulation and its application in industry. His topic being close to the research carried out at the Faculty of Technology, Policy and Management, Delft University of Technology, and the BETADE research program, he started to collaborate with researchers from these groups, getting involved in two joint practical case study projects. This collaboration resulted in seven joint scientific articles, presented at various international conferences. Furthermore, Csaba has maintained international contacts with researchers from the distributed simulation area. He has been invited twice to Brunel University, London to give a presentation concerning the application of distributed simulation in industry. Currently, he is working as a simulation consultant atGedistribueerde simulatie wordt binnen de defensie in brede kring geaccepteerd en toegepast, maar het heeft in de industrie geen voet aan de grond gekregen. In dit proefschrift onderzoeken we de redenen voor dit fenomeen door te bestuderen wat de industrie verwacht op het terrein van de gedistribueerde simulatie. In het algemeen worden in de industrie simulatiemodellen ontworpen en ontwikkeld met COTS (“commercial-off-the-shelf”) simulatiepakketten. Echter, de bestaande architecturen voor gedistribueerde simulatie binnen defensie zijn niet gericht op het koppelen van modellen gebouwd met COTS simulatiepakketten. Om de industrie te motiveren gedistribueerde simulatie te accepteren en te gebruiken moet men derhalve ernaar streven het mogelijk te maken om modellen, die gebouwd zijn met deze pakketten, aan elkaar te koppelen zonder dat dat al te veel inspanning vereist van de modelbouwers. Uitgaande van een onderzoek onder experts in dit domein, stellen we in dit proefschrift een pakket van eisen voor voor het ontwerp en ontwikkelen van gedistribueerde simulatiearchitecturen dat de industriegemeenschap zal motiveren om gedistribueerde simulatie te accepteren en toe te passen. Daarnaast presenteren we een lichtgewicht architectuur voor gedistribueerde simulatie die met succes toegepast is in twee industriële projecten, en die in grote mate voldoet aan het voorgestelde pakket van eisen.While distributed simulation is widely accepted and applied in defence, it has not gathered ground yet in industry. In this thesis we investigate the reasons behind this phenomenon by surveying the expectation of industry with respect to distributed simulation solutions. Simulation models in industry are mainly designed and developed in commercial-off-the-shelf (COTS) simulation packages. The existing distributed simulation architectures in defence, however, do not focus on coupling models created in COTS simulation packages. Therefore, in order to motivate the industrial community to easily accept and use distributed simulation, one should strive to couple models built in these packages. Further, coupling these models should be possible without needing too much extra effort from modellers. In this thesis, based on a survey with experts in domain, we propose a list of requirements for designing and developing distributed simulation architectures that would encourage the industrial community to accept and apply distributed simulation. Furthermore, we present a lightweight distributed simulation architecture which has been successfully applied in two industrial projects, and satisfies to a large extent the proposed requirements

    A Framework To Model Complex Systems Via Distributed Simulation: A Case Study Of The Virtual Test Bed Simulation System Using the High Level Architecture

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    As the size, complexity, and functionality of systems we need to model and simulate con-tinue to increase, benefits such as interoperability and reusability enabled by distributed discrete-event simulation are becoming extremely important in many disciplines, not only military but also many engineering disciplines such as distributed manufacturing, supply chain management, and enterprise engineering, etc. In this dissertation we propose a distributed simulation framework for the development of modeling and the simulation of complex systems. The framework is based on the interoperability of a simulation system enabled by distributed simulation and the gateways which enable Com-mercial Off-the-Shelf (COTS) simulation packages to interconnect to the distributed simulation engine. In the case study of modeling Virtual Test Bed (VTB), the framework has been designed as a distributed simulation to facilitate the integrated execution of different simulations, (shuttle process model, Monte Carlo model, Delay and Scrub Model) each of which is addressing differ-ent mission components as well as other non-simulation applications (Weather Expert System and Virtual Range). Although these models were developed independently and at various times, the original purposes have been seamlessly integrated, and interact with each other through Run-time Infrastructure (RTI) to simulate shuttle launch related processes. This study found that with the framework the defining properties of complex systems - interaction and emergence are realized and that the software life cycle models (including the spiral model and prototyping) can be used as metaphors to manage the complexity of modeling and simulation of the system. The system of systems (a complex system is intrinsically a system of systems ) continuously evolves to accomplish its goals, during the evolution subsystems co-ordinate with one another and adapt with environmental factors such as policies, requirements, and objectives. In the case study we first demonstrate how the legacy models developed in COTS simulation languages/packages and non-simulation tools can be integrated to address a compli-cated system of systems. We then describe the techniques that can be used to display the state of remote federates in a local federate in the High Level Architecture (HLA) based distributed simulation using COTS simulation packages
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