42 research outputs found

    Designing Security Policies for Complex SCADA Systems Protection

    Get PDF
    The management and protection of these SCADA systems must constantly evolve towards integrated decision making and policy driven by cyber security requirements. The current research stream in this domain aims, accordingly, to foster the smartness of the field equipment which exist through the generic concept of SCADA management and operation. Those components are governed by policies which depend on the components roles, as well as on the evolution of the crisis which also confer to the latter the latitude to react based on their own perception of the crisis evolution. Their latitude is calculated based on the component smartness and is strongly determined by, and depending on, the cyber safety of the component environment. Existing work related to crisis management tends to consider that components evolve and are organized in systems but as far as we know, no systemic solution exists which integrates all of the above requirements. This paper proposes an innovative version of ArchiMate® for the SCADA components modelling purpose to enrich their collaborations and, more particularly, the description of their behavior endorsed in the cyber-policy. Our work has been illustrated in the frame of a critical infrastructure in the field of petroleum supply and storage networks

    Designing Security Policies for Complex SCADA Systems Protection

    Get PDF
    The management and protection of these SCADA systems must constantly evolve towards integrated decision making and policy driven by cyber security requirements. The current research stream in this domain aims, accordingly, to foster the smartness of the field equipment which exist through the generic concept of SCADA management and operation. Those components are governed by policies which depend on the components roles, as well as on the evolution of the crisis which also confer to the latter the latitude to react based on their own perception of the crisis evolution. Their latitude is calculated based on the component smartness and is strongly determined by, and depending on, the cyber safety of the component environment. Existing work related to crisis management tends to consider that components evolve and are organized in systems but as far as we know, no systemic solution exists which integrates all of the above requirements. This paper proposes an innovative version of ArchiMate® for the SCADA components modelling purpose to enrich their collaborations and, more particularly, the description of their behavior endorsed in the cyber-policy. Our work has been illustrated in the frame of a critical infrastructure in the field of petroleum supply and storage networks

    Management Framework for the Visualization of Smart Monitoring Architectures Apply to Distributed Ubiquity Mobility Platform

    Get PDF
    Smart Mobility is proved to be a high priority topic in regard to arising European societal challenges. Deploying smart mobility required both technological and monitoring knowledge, and one important key features of the initiative stay in the multiplicity of the final users. Its goal is, depending on the type of users, to provide the required accurate data through a dynamic monitoring application. This implies to collect data coming from physical sensors deployed in all the parking areas of a region. Those sensors are simple, meaning that the information that they can collect is limited to an entry or exit signal of a vehicle. This paper presents an architecture for applying the visualization of smart monitoring architecture to a distributed ubiquity mobility platform and show a deployment in the frame of a use case. The later has been developed in a European region and consists in a smart mobility monitoring project

    Renewable energy cooperative in Portugal: electricity retailing supply process

    Get PDF
    Tese de mestrado integrado em Engenharia da Energia e do Ambiente, apresentada à Universidade de Lisboa, através da Faculdade de Ciências, 2014Em colaboração com a Coopérnico, a primeira cooperativa de energias renováveis em Portugal, este trabalho propõe-se a estudar o papel que as cooperativas de energias renováveis podem vir a ter no futuro do mercado liberalizado, na Europa e em Portugal. Para além disso, com base na análise da experiência partilhada por vários cooperativas europeias de energias renováveis, incluindo os quatro casos de estudo seleccionados para este trabalho (The Co-operative Energy no Reino Unido a Ecopower na Bélgica, a EWS na Alemanha e a Som Energia na Espanha), este trabalho pretende também reunir um conjunto de recomendações para uma cooperativa de energias renováveis poder entrar com sucesso no mercado liberalizado de electricidade. Entre os vários parâmetros analisados, o estudo permite identificar as principais razões pelas quais as cooperativas de energias renováveis estão cada vez mais a tornar-se numa alternativa concreta às tradicionais empresas de energia, as principais barreiras que as cooperativas de energias renováveis enfrentam no decorrer do seu processo de comercialização de electricidade, bem como um leque de possíveis soluções que as podem ajudar a superar estes obstáculos. Com base nestes resultados, e com o objectivo de transformar a Coopérnico no primeiro comercializador de electricidade verde em Portugal, o trabalho propõe-se igualmente a caracterizar o panorama do sector eléctrico português, incluindo a compilação de todos os passos e requisitos que uma cooperativa de energias renováveis necessita cumprir para se tornar num comercializador de electricidade em Portugal. Embora o processo de comercialização de eletricidade da Coopérnico já tenha sido iniciado, com a atribuição do registo de comercializador de electricidade pela Direcção-Geral de Energia e Geologia (DGEG), o passo final só será dado após Assembleia Geral da Coopérnico que ocorrerá em meados de Dezembro de 2014 onde serão avaliadas as diferentes opções possíveis e votado o caminho a seguir para o que resta do processo.In collaboration with Coopérnico, the first RES Cooperative in Portugal, this work has as one of its main goals to understand the potential role that RES Cooperatives may have in the future of the liberalised energy sector not only across Europe, but particularly in Portugal. Moreover, based on the experience shared by several RES Cooperatives, including the closer look at the selected four case studies (The Co-operative Energy in the United Kingdom, Ecopower in Belgium, EWS in Germany and Som Energia in Spain), this work came up with a set of recommendations for any RES Cooperative that intends to become a new electricity supplier in its national territory. For instance, the study allows to identify the main reasons why RES Cooperatives are becoming a solid alternative solution to the traditional energy companies, the main barriers a RES Cooperative faces during its electricity retailing supply process, as well as a role of solution that may help to overcome these possible obstacles. Based on these findings, and with the aim to transform Coopérnico in the first green electricity supplier in Portugal, the work also extends to the full characterisation of the Portuguese electricity sector, including the compilation of all the steps and requirements to become a new electricity supplier in Portugal. Although the Coopérnico’s electricity retailing supply process has already been initiated with the assignment of registration of electricity supplier by The Directorate General for Energy and Geology (DGEG), the final step will only be given after the Coopérnico’s General Assembly in mid-December 2014. Then, it will be discussed and assessed the different options available and voted the path to take for the missing process

    The Role of Transnational Elites in shaping the evolving Field of Internet Governance

    Get PDF
    La gouvernance de l'Internet est une thématique récente dans la politique mondiale. Néanmoins, elle est devenue au fil des années un enjeu économique et politique important. La question a même pris une importance particulière au cours des derniers mois en devenant un sujet d'actualité récurrent. Forte de ce constat, c ette recherche retrace l'histoire de la gouvernance de l'Internet depuis son émergence comme enjeu politique dans les années 1980 jusqu'à la fin du Sommet Mondial sur la Société de l'Information (SMSI) en 2005. Plutôt que de se focaliser sur l'une ou l'autre des institutions impliquées dans la régulation du réseau informatique mondial, cette recherche analyse l'émergence et l'évolution historique d'un espace de luttes rassemblant un nombre croissant d'acteurs différents. Cette évolution est décrite à travers le prisme de la relation dialectique entre élites et non-élites et de la lutte autour de la définition de la gouvernance de l'Internet. Cette thèse explore donc la question de comment les relations au sein des élites de la gouvernance de l'Internet et entre ces élites et les non-élites expliquent l'emergence, l'évolution et la structuration d'un champ relativement autonome de la politique mondiale centré sur la gouvernance de l'Internet. Contre les perspectives dominantes réaliste et libérales, cette recherche s'ancre dans une approche issue de la combinaison des traditions hétérodoxes en économie politique internationale et des apports de la sociologie politique internationale. Celle-ci s'articule autour des concepts de champ, d'élites et d'hégémonie. Le concept de champ, développé par Bourdieu inspire un nombre croissant d'études de la politique mondiale. Il permet à la fois une étude différenciée de la mondialisation et l'émergence d'espaces de lutte et de domination au niveau transnational. La sociologie des élites, elle, permet une approche pragmatique et centrée sur les acteurs des questions de pouvoir dans la mondialisation. Cette recherche utilise plus particulièrement le concept d'élite du pouvoir de Wright Mills pour étudier l'unification d'élites a priori différentes autour de projets communs. Enfin, cette étude reprend le concept néo-gramscien d'hégémonie afin d'étudier à la fois la stabilité relative du pouvoir d'une élite garantie par la dimension consensuelle de la domination, et les germes de changement contenus dans tout ordre international. A travers l'étude des documents produits au cours de la période étudiée et en s'appuyant sur la création de bases de données sur les réseaux d'acteurs, cette étude s'intéresse aux débats qui ont suivi la commercialisation du réseau au début des années 1990 et aux négociations lors du SMSI. La première période a abouti à la création de l'Internet Corporation for Assigned Names and Numbers (ICANN) en 1998. Cette création est le résultat de la recherche d'un consensus entre les discours dominants des années 1990. C'est également le fruit d'une coalition entre intérêts au sein d'une élite du pouvoir de la gouvernance de l'Internet. Cependant, cette institutionnalisation de l'Internet autour de l'ICANN excluait un certain nombre d'acteurs et de discours qui ont depuis tenté de renverser cet ordre. Le SMSI a été le cadre de la remise en cause du mode de gouvernance de l'Internet par les États exclus du système, des universitaires et certaines ONG et organisations internationales. C'est pourquoi le SMSI constitue la seconde période historique étudiée dans cette thèse. La confrontation lors du SMSI a donné lieu à une reconfiguration de l'élite du pouvoir de la gouvernance de l'Internet ainsi qu'à une redéfinition des frontières du champ. Un nouveau projet hégémonique a vu le jour autour d'éléments discursifs tels que le multipartenariat et autour d'insitutions telles que le Forum sur la Gouvernance de l'Internet. Le succès relatif de ce projet a permis une stabilité insitutionnelle inédite depuis la fin du SMSI et une acceptation du discours des élites par un grand nombre d'acteurs du champ. Ce n'est que récemment que cet ordre a été remis en cause par les pouvoirs émergents dans la gouvernance de l'Internet. Cette thèse cherche à contribuer au débat scientifique sur trois plans. Sur le plan théorique, elle contribue à l'essor d'un dialogue entre approches d'économie politique mondiale et de sociologie politique internationale afin d'étudier à la fois les dynamiques structurelles liées au processus de mondialisation et les pratiques localisées des acteurs dans un domaine précis. Elle insiste notamment sur l'apport de les notions de champ et d'élite du pouvoir et sur leur compatibilité avec les anlayses néo-gramsciennes de l'hégémonie. Sur le plan méthodologique, ce dialogue se traduit par une utilisation de méthodes sociologiques telles que l'anlyse de réseaux d'acteurs et de déclarations pour compléter l'analyse qualitative de documents. Enfin, sur le plan empirique, cette recherche offre une perspective originale sur la gouvernance de l'Internet en insistant sur sa dimension historique, en démontrant la fragilité du concept de gouvernance multipartenaire (multistakeholder) et en se focalisant sur les rapports de pouvoir et les liens entre gouvernance de l'Internet et mondialisation. - Internet governance is a recent issue in global politics. However, it gradually became a major political and economic issue. It recently became even more important and now appears regularly in the news. Against this background, this research outlines the history of Internet governance from its emergence as a political issue in the 1980s to the end of the World Summit on the Information Society (WSIS) in 2005. Rather than focusing on one or the other institution involved in Internet governance, this research analyses the emergence and historical evolution of a space of struggle affecting a growing number of different actors. This evolution is described through the analysis of the dialectical relation between elites and non-elites and through the struggle around the definition of Internet governance. The thesis explores the question of how the relations among the elites of Internet governance and between these elites and non-elites explain the emergence, the evolution, and the structuration of a relatively autonomous field of world politics centred around Internet governance. Against dominant realist and liberal perspectives, this research draws upon a cross-fertilisation of heterodox international political economy and international political sociology. This approach focuses on concepts such as field, elites and hegemony. The concept of field, as developed by Bourdieu, is increasingly used in International Relations to build a differentiated analysis of globalisation and to describe the emergence of transnational spaces of struggle and domination. Elite sociology allows for a pragmatic actor-centred analysis of the issue of power in the globalisation process. This research particularly draws on Wright Mill's concept of power elite in order to explore the unification of different elites around shared projects. Finally, this thesis uses the Neo-Gramscian concept of hegemony in order to study both the consensual dimension of domination and the prospect of change contained in any international order. Through the analysis of the documents produced within the analysed period, and through the creation of databases of networks of actors, this research focuses on the debates that followed the commercialisation of the Internet throughout the 1990s and during the WSIS. The first time period led to the creation of the Internet Corporation for Assigned Names and Numbers (ICANN) in 1998. This creation resulted from the consensus-building between the dominant discourses of the time. It also resulted from the coalition of interests among an emerging power elite. However, this institutionalisation of Internet governance around the ICANN excluded a number of actors and discourses that resisted this mode of governance. The WSIS became the institutional framework within which the governance system was questioned by some excluded states, scholars, NGOs and intergovernmental organisations. The confrontation between the power elite and counter-elites during the WSIS triggered a reconfiguration of the power elite as well as a re-definition of the boundaries of the field. A new hegemonic project emerged around discursive elements such as the idea of multistakeholderism and institutional elements such as the Internet Governance Forum. The relative success of the hegemonic project allowed for a certain stability within the field and an acceptance by most non-elites of the new order. It is only recently that this order began to be questioned by the emerging powers of Internet governance. This research provides three main contributions to the scientific debate. On the theoretical level, it contributes to the emergence of a dialogue between International Political Economy and International Political Sociology perspectives in order to analyse both the structural trends of the globalisation process and the located practices of actors in a given issue-area. It notably stresses the contribution of concepts such as field and power elite and their compatibility with a Neo-Gramscian framework to analyse hegemony. On the methodological level, this perspective relies on the use of mixed methods, combining qualitative content analysis with social network analysis of actors and statements. Finally, on the empirical level, this research provides an original perspective on Internet governance. It stresses the historical dimension of current Internet governance arrangements. It also criticise the notion of multistakeholde ism and focuses instead on the power dynamics and the relation between Internet governance and globalisation

    Management, Technology and Learning for Individuals, Organisations and Society in Turbulent Environments

    Get PDF
    This book presents the collection of fifty two papers which were presented on the First International Conference on BUSINESS SUSTAINABILITY ’08 - Management, Technology and Learning for Individuals, Organisations and Society in Turbulent Environments, held in Ofir, Portugal, from 25th to 27th of June, 2008. The main motive of the meeting was the growing awareness of the importance of the sustainability issue. This importance had emerged from the growing uncertainty of the market behaviour that leads to the characterization of the market, i.e. environment, as turbulent. Actually, the characterization of the environment as uncertain and turbulent reflects the fact that the traditional technocratic and/or socio-technical approaches cannot effectively and efficiently lead with the present situation. In other words, the rise of the sustainability issue means the quest for new instruments to deal with uncertainty and/or turbulence. The sustainability issue has a complex nature and solutions are sought in a wide range of domains and instruments to achieve and manage it. The domains range from environmental sustainability (referring to natural environment) through organisational and business sustainability towards social sustainability. Concerning the instruments for sustainability, they range from traditional engineering and management methodologies towards “soft” instruments such as knowledge, learning, creativity. The papers in this book address virtually whole sustainability problems space in a greater or lesser extent. However, although the uncertainty and/or turbulence, or in other words the dynamic properties, come from coupling of management, technology, learning, individuals, organisations and society, meaning that everything is at the same time effect and cause, we wanted to put the emphasis on business with the intention to address primarily the companies and their businesses. From this reason, the main title of the book is “Business Sustainability” but with the approach of coupling Management, Technology and Learning for individuals, organisations and society in Turbulent Environments. Concerning the First International Conference on BUSINESS SUSTAINABILITY, its particularity was that it had served primarily as a learning environment in which the papers published in this book were the ground for further individual and collective growth in understanding and perception of sustainability and capacity for building new instruments for business sustainability. In that respect, the methodology of the conference work was basically dialogical, meaning promoting dialog on the papers, but also including formal paper presentations. In this way, the conference presented a rich space for satisfying different authors’ and participants’ needs. Additionally, promoting the widest and global learning environment and participativeness, the Conference Organisation provided the broadcasting over Internet of the Conference sessions, dialogical and formal presentations, for all authors’ and participants’ institutions, as an innovative Conference feature. In these terms, this book could also be understood as a complementary instrument to the Conference authors’ and participants’, but also to the wider readerships’ interested in the sustainability issues. The book brought together 97 authors from 10 countries, namely from Australia, Finland, France, Germany, Ireland, Portugal, Russia, Serbia, Sweden and United Kingdom. The authors “ranged” from senior and renowned scientists to young researchers providing a rich and learning environment. At the end, the editors hope and would like that this book will be useful, meeting the expectation of the authors and wider readership and serving for enhancing the individual and collective learning, and to incentive further scientific development and creation of new papers. Also, the editors would use this opportunity to announce the intention to continue with new editions of the conference and subsequent editions of accompanying books on the subject of BUSINESS SUSTAINABILITY, the second of which is planned for year 2011.info:eu-repo/semantics/publishedVersio

    In Pursuit of Optimal Workflow Within The Apache Software Foundation

    Get PDF
    abstract: The following is a case study composed of three workflow investigations at the open source software development (OSSD) based Apache Software Foundation (Apache). I start with an examination of the workload inequality within the Apache, particularly with regard to requirements writing. I established that the stronger a participant's experience indicators are, the more likely they are to propose a requirement that is not a defect and the more likely the requirement is eventually implemented. Requirements at Apache are divided into work tickets (tickets). In our second investigation, I reported many insights into the distribution patterns of these tickets. The participants that create the tickets often had the best track records for determining who should participate in that ticket. Tickets that were at one point volunteered for (self-assigned) had a lower incident of neglect but in some cases were also associated with severe delay. When a participant claims a ticket but postpones the work involved, these tickets exist without a solution for five to ten times as long, depending on the circumstances. I make recommendations that may reduce the incidence of tickets that are claimed but not implemented in a timely manner. After giving an in-depth explanation of how I obtained this data set through web crawlers, I describe the pattern mining platform I developed to make my data mining efforts highly scalable and repeatable. Lastly, I used process mining techniques to show that workflow patterns vary greatly within teams at Apache. I investigated a variety of process choices and how they might be influencing the outcomes of OSSD projects. I report a moderately negative association between how often a team updates the specifics of a requirement and how often requirements are completed. I also verified that the prevalence of volunteerism indicators is positively associated with work completion but what was surprising is that this correlation is stronger if I exclude the very large projects. I suggest the largest projects at Apache may benefit from some level of traditional delegation in addition to the phenomenon of volunteerism that OSSD is normally associated with.Dissertation/ThesisDoctoral Dissertation Industrial Engineering 201
    corecore