Universiẗat, Diss.--Köln, 2007.

Zugl.: München, Univ., Diss., 2009

Diss. Helsinki School of Economicse.

Thesis (doctoral)--Universität, Freiburg (Breisgau), 2005.

Thesis (doctoral)--Universität St. Gallen, 2009.

Principal acteur de la communication au public en ligne, le fournisseur d'accès à Internet offre une connexion, contrôle les points d'accès, identifie les utilisateurs. Ses responsabilités extra-contractuelles résultent de ses multiples fonctions : prestataire technique, responsable de traitement des données, exécutant d'injonctions judiciaires. Ses responsabilités sont abondantes et parfois surabondantes. Toutefois, malgré un régime de responsabilité qui lui est spécifiquement applicable, la notion de "fournisseur d'accès à Internet" n'est toujours pas juridiquement définie. Cette imprécision de la notion entraîne une profusion de régimes juridiques imposant le statut de fournisseur d'accès à des acteurs dont l'activité principale n'est pas la fourniture d'une connexion à Internet : Universités, entreprises, particuliers. Dès lors, les responsabilités extra-contractuelles pénales, civiles et administratives se multiplient et créent un régime obligationnel instable, obscur, voire abscons. Cet éclatement lexical et juridique est encore aggravé par l'application fonctionnelle à l'activité de fourniture d'accès, du droit des communications électroniques et de la société de l'information. Il est alors nécessaire de proposer une définition formelle du fournisseur d'accès à Internet susceptible d'unifier son régime de responsabilité autour de notions juridiques stabilisées. Cette reconstruction affectera inévitablement la réglementation relative à la communication au public en ligne et à ses acteurs, mais proposera une possible fondation au droit des communications électroniques / Internet Service Providers are major actors of the Information Society. They offer connections, controls access points, and can also identify their users. Their many liabilities result from their multiple functions as technical services provider, data controller or performers of judicial orders. These legal obligations are numerous and sometimes overabundant. In spite of an existing and specific liability status, the very notion of "Internet service provider" still remains legally undefined. This lacuna entails a profusion of legal status imposing an ISP status to players for which the main activity is not to provide an Internet connection : Universities, companies, individuals. From then on, criminal, civil and administrative liabilities multiply and create an instable, obscure and even abstruse status. This lexical and legal scattering is even worsened by the functional application of the electronic communications and Information Society legal framework to access providing activities. It is then necessary to unify the legal regimes associated to those activities according to stabilized legal concepts. This reconstruction will inevitably affect the Information Society legal framework as a whole. Eventually, it will open on a possible ground for the electronic communications legal framework

[pt] O desenvolvimento de arquiteturas de Qualidade de Serviço (QoS) para a Internet é um problema que tem recebido bastante atenção ultimamente. Diversos motivos têm impedido a implementação destas arquiteturas em larga escala como, por exemplo, a dificuldade de estabelecimento de contratos e políticas de QoS entre usuários, provedores e operadoras e a ausência de mecanismos na rede para solicitar serviços com garantia de qualidade. Apesar de não terem acesso a um serviço que garanta certos níveis de desempenho para cada tipo de aplicação, os usuários de Internet têm se mostrado cada vez mais exigentes na qualidade do acesso à rede. Isto se confirma com a migração crescente de muitos destes usuários para o acesso à Internet em banda larga. Os provedores de acesso à Internet, principalmente os de banda larga, devem adotar políticas de gerenciamento de seus recursos para atender às expectativas de qualidade dos usuários e se manter competitivos no mercado. Neste trabalho, foram identificados problemas nos processos adotados em um provedor de acesso em banda larga sem fio, a MLS Wireless. No sistema antigo, ocorriam situações que causavam a indisponibilidade de serviços por causa da limitação de conexões simultâneas na rede ou ainda uma degradação na banda e aumento na latência do acesso devido a falta de justiça no compartilhamento de recursos. O trabalho sugere soluções para as deficiências encontradas, implementando-as e analisando a eficácia das mesmas. Para resolver o problema de indisponibilidade, sugere-se o estabelecimento de limites por usuário, para que a capacidade total do sistema não seja esgotada. Para resolver o problema de injustiça e dar maior eqüidade na distribuição de recursos entre os usuários, é implementado um novo mecanismo de compartilhamento baseado em uma disciplina de fila SFQ (Stochastic Fairness Queueing). Os resultados mostraram que as modificações propostas foram efetivas. O tempo de acesso à serviços de WWW e e-mail durante períodos de congestionamento foi drasticamente reduzido, em alguns casos, de cerca de 1 minuto para menos de 10 segundos. / [en] The development of Quality of Service (QoS) architectures for the Internet is a problem that has received significative attention recently. The large scale deployment of such architectures has being blocked by several reasons, such as, the dificulty in establishing Service Level Agreements (SLA) of QoS policies between users, Internet Service Providers (ISP) and operators, and the lack of mechanisms on the network to request services with quality guarantees. Despite of not having access to a service that can guarantee certain levels of performance per aplication, the Internet users are getting more and more concerned about the network quality. That can be confirmed by the number of users that are migrating to the broadband Internet access. The ISP´s, specially the broadband ones, must take measurements to manage their resources to satisfy the users´ expectations of quality and stay competitive on the market. In this work, problems have being identified at the processes used by a broadband ISP, the MLS Wireless. With the old system, certain situations could cause the denial of service due the number of simultaneos connections or degradation and increased latency due the lack of fairness to share the network resources. This work suggests some solutions for these deficiencies, implementing and analyzing their effectiveness. To fix the denial of service, we suggest the limitation of resources per user, so that the total capacity won´t be depleted. To have the resources more fairly distributed among the users, a new mechanism of sharing is implemented, based on a discipline named SFQ (Stochastic Fairness Queueing). The results show that those modifications have being effective. The time to access services like WWW and e-mail during congestion periods was drasticaly reduced, in some cases, from about 1 minute to less than 10 seconds.

Doctor Legum - LLD / Along with its inumerable wonders, the advent of the internet has brought with it very bad vices. The notion of convenience, which comes with the use of the internet, can be attributed to criminals who wish to disguise the proceeds of their ill-derived funds, or what is better known as cyberlaundering. Cyberlaundering is a phenomenon that seems negligible on face value, but, to the contrary, has very dire effects, especially on national economies, which are in no way trifling.This study describes the problem of cyberlaundering, pointing out the various legal issues pertaining to it. Given that cyberlaundering is a comparatively new crime, which is not yet conceptualized legally, criminal justice authorities find it hard to detect, investigate and prosecute cyberlaundering. An adequate legal regime against cyberlaundering is currently non-existent, as there is presently no concise international or national legal framework in place to contain the problem. Whilst the chief focus of the thesis is to devise a legal framework to combat cyberlaundering, considerable attention is also devoted to the tension that arises between public and private interests, amongst several other legal issues that come to play along the way. This is a debate that necessarily arises when legislatures resort to more radical anti-cyberlaundering laws. The study advocates a middle ground, which leads to the desired end of curbing the exponential growth of cyberlaundering, at the very least.

The thesis addresses the research question: How to describe, understand, and explain IT service delivery? Based on the research question, the following research questions were derived:  How to analyse IT service delivery based on ITIL in order to determine its current situation? How to formalize elements of IT service delivery in maturity level that can be used to assess its current status? These research questions are answered by two IT artefacts: an analysis method and a maturity model for IT service delivery. Both of them are constructed by design-science research guidelines. The analysis method is focused on understanding the IT service delivery in organizations; it is founded on the IT service delivery processes of Information Technology Infrastructure Library (ITIL) version 2. The method proposed has been applied through three case studies of Nicaraguan Internet Service Providers (ISPs). The maturity model is oriented to formalize and assess the maturity level of IT service delivery; it is supported by IT service delivery elements that are considered significant for managing IT service delivery by the Nicaraguan ISP sector, by IT service concepts, and by maturity model properties, and complemented by the IT Service Capability Maturity Model. The maturity model provides a mechanism for evaluating the maturity level of IT service delivery through a set of maturity statements and includes a graphical representation; it is also applied to the traceable information of the current status of IT service delivery of one of the Nicaraguan ISPs. / QC 20110209

The Liability of the Information Society Service Provider for the Infringement of Copyright Abstract This diploma thesis deals with conditions of emergence and exclusion of liability of internet society service providers (ISP) with a focus on copyright. The thesis first defines the terms, which are essential for understanding of the topic. Then, in second chapter, it delas with copyright on the internet, specifically with the author's right to communicate work to the public, which can be violated in large extent by the internet users or ISPs themselves. In this regard, the thesis focuses on the case law interpretation of the concept of the right to communicate works to the public and conditions under which the ISP themselves may be found to be communicating works to the public without authorization. In third chapter, the thesis the work examines the relevant provisions of the E-Commerce Directive, which outlines the scope of the liability of ISPs providing hosting services. The thesis analyses the conditions of the safe harbour, i.e. the conditions that must be met by these providers in order not to incur liability for content which is stored by the users of their services. The recent CJEU is examined in this regard. In addition, the thesis analyses the prohibition of the general monitoring obligation,...