I-centric User Interaction

Die Vision I-centric Communications bedeutet, einen uneingeschränkten Blick auf das menschliche Kommunikationsverhalten zu werfen, um Kommunikationssysteme entsprechend daran angepasst zu entwickeln. Diese Vision definiert einen benutzerorientierten Ansatz zur Erstellung von Diensten und Anwendungen. Dies setzt zunächst eine Analyse der Benutzeranforderungen voraus, um geeignete Systeme und Dienste zu entwerfen. Anstatt Technologie-fokussierte Lösungen ohne jegliche Anpassung an die jeweiligen Personen anzubieten, sollte ein I-centric System seine Dienste ohne sichtbare technische Details und unter Berücksichtigung von Benutzerpräferenzen sowie der Benutzerumgebung darbieten. Der Vision von I-centric Communications folgend, stellt die vorliegende Arbeit einen Ansatz zur Realisierung der Idee von I-centric User Interaction vor. Dieser Ansatz erweitert und vervollständigt die Vision durch verbesserte Benutzerinteraktionsfähigkeiten. Diese Dissertation zeigt, dass es möglich ist, Kommunikationssysteme zu realisieren, die die Interaktion zwischen Benutzern und Diensten ohne Einschränkung auf bestimmte Technologien für Benutzerschnittstellen sowie in personalisierter und umgebungsberücksichtigende Art und Weise unterstützen. Derartig verbesserte Benutzerinteraktion wird die Akzeptanz und die Benutzung von Diensten erhöhen. Einerseits soll die Benutzerinteraktion verschiedene Arten von Technologien für Benutzerschnittstellen unterstützen, durch die die Geräte-Unabhängigkeit und der ständige Zugang zu den Diensten ermöglicht werden. Entsprechend dem aktuellem Kontext und der Absicht können die Benutzer die bevorzugte und geeignete Art der Interaktion wählen. Andererseits soll die Interaktion selbst den Benutzerpräferenzen sowie der jeweiligen Umgebung angepasst werden. Dementsprechend diskutiert die vorliegende Arbeit diese unterschiedlichen Problembereiche, identifiziert die notwendigen Funktionen und bietet entsprechende Lösungsansätze jeweils. Die Arbeit präsentiert und analysiert zunächst die Vision I-centric Communications mit Hinblick auf den Aspekt der Benutzerinteraktion. Basierend auf den identifizierten Anforderungen wurde ein Ansatz zur Realisierung von I-centric User Interaction entwickelt. Dieser Ansatz, der in dieser Arbeit vorgestellt wird, spezifiziert ein Service Adaptation Framework und einzelne Modelle für Generische Benutzerinteraktion , für Personalisierung sowie für Ambient Awareness , die sich jeweils auf die identifizierten Problembereiche konzentrieren. Abschließend präsentiert die vorliegende Arbeit Ergebnisse einer prototypischen Realisierung des dargelegten Ansatzes. Die Ergebnisse demonstrieren die Einsetzbarkeit der entwickelten Konzepte und die Erfüllung der Vision von I-centric User Interaction . Die Forschungsarbeit im Bereich I-centric Communications wurde in Kooperation zwischen dem Lehrstuhl für Offene Kommunikationssysteme (OKS) der Technischen Universität Berlin (TUB) und dem Fraunhofer Institut FOKUS durchgeführt. Die Vision sowie das Referenzmodell für I-centric Communications , die in der vorliegenden Arbeit vorgestellt werden, sind Ergebnisse dieser Kooperation. Die Forschungsschwerpunkte der Kooperation zwischen TUB und FOKUS waren das Generelle Modell für I-centric Dienste , die Dienstplattform für I-centric Dienste sowie ein Ansatz zur Interaktion zwischen Nutzern und I-centric Dienste . Die vorliegende Arbeit konzentriert sich auf den Ansatz I-centric User Interaction , der die Interaktion zwischen Nutzern und den Diensten betrachtet. Die Aspekte der I-centric Dienste werden in der vorliegenden Arbeit nicht betrachtet. Diese Aspekte wurden in einer zweiten Dissertation von Stefan Arbanowski, Fraunhofer FOKUS, analysiert und ausgearbeitet. Die Ergebnisse dieser Arbeit wurden in verschiedenen nationalen und internationalen Forschungsprojekten (BMBF LiveFutura, BMBF PI-AVIda, BMBF VHE-UD, IST WSI, IST WWRI), Standardisierungsgremien (OMG, WWRF), Konferenzpapieren sowie Zeitschriften eingebracht, um die Vision von I-centric Communications einem größeren Auditorium vorzustellen.The vision of I-centric Communications means to take an unlimited look at human communication behavior and to adapt the activities of communication systems to it. This vision defines a user-centered approach for the realization of services and applications. It requires to start analyzing user demands to design suitable systems and services. Instead of just providing technology-focused solutions without any adaptation to individuals, an I-centric system should provide services hiding technical details and considering the individual s preferences as well as the individual s environment. Following the vision of I-centric Communications, this thesis introduces an approach to realize I-centric User Interaction. This approach enhances and completes the vision by providing advanced user interaction capabilities. It answers the question whether it is possible to realize a communication system, which allows the interaction between user and services without any restriction to specific user interface technologies and in a personalized as well as ambient aware manner. Such enhanced user interaction will lead to a higher acceptance and increased usage of services. On the one hand, the user interaction shall support different kinds of user interface technologies enabling Device Independence and ubiquitous access to the services. According to their current context and intended action, users can select the preferred and suitable way of interaction. On the other hand, the user interaction shall be adapted to the user s preferences and to the user s environment. Accordingly, this work discusses these different areas of concern, identifies necessary functions, and provides suitable solutions for each. First, the thesis introduces and analyses the vision of I-centric Communications with special regard to the aspect of user interaction. Based on the identified requirements and areas of concern, an approach to realize I-centric User Interaction was developed. The approach, presented in this thesis, specifies a Service Adaptation Framework and individual models for Personalization, for Ambient Awareness, and for Generic User Interaction focusing on the respective areas of concern. Finally, the thesis illustrates the results from the prototypical implementation of the presented approach, which has been pursued in several projects in parallel. These results demonstrate the applicability of the developed concepts and the fulfillment of the vision of I-centric User Interaction. The work in the area of I-centric Communications was carried out in cooperation of the Department for Open Communication Systems (OKS) at the Technical University Berlin (TUB) and the Fraunhofer Institute FOKUS. The vision and the reference model for I-centric Communications, introduced in this thesis, are results of this cooperation. The main research directions for the cooperation between TUB and FOKUS have been a general model for I-centric services, the service platform for I-centric services, and an approach for the interaction of users with I-centric services. This thesis focuses on an approach for I-centric User Interaction. The general aspects of I-centric services as defined by the vision are out of scope of this thesis. Nevertheless, these aspects have been analyzed by Stefan Arbanowski, researcher at Fraunhofer FOKUS, in a second PhD thesis in parallel. The results of this work have been contributed to different national and international projects (BMBF LiveFutura, BMBF PI-AVIda, BMBF VHE-UD, IST WSI, IST WWRI), standardization bodies (OMG, WWRF), conferences papers, and journals by introducing the vision of I-centric Communications to a larger auditorium, and by exploiting parts of the developed I-centric systems

Authorisation Issues for Mobile Code in Mobile Systems

This thesis is concerned with authorisation issues for mobile code in mobile systems. It is divided into three main parts. Part I covers the development of a policy-based framework for the authorisation of mobile code and agents by host systems. Part II addresses the secure download, storage and execution of a conditional access application, used in the secure distribution of digital video broadcast content. Part III explores the way in which trusted computing technology may be used in the robust implementation of OMA DRM version 2. In part I of this thesis, we construct a policy-based mobile code and agent authorisation framework, with the objective of providing both mobile devices and service providers with the ability to assign appropriate privileges to incoming executables. Whilst mobile code and agent authorisation mechanisms have previously been considered in a general context, this thesis focuses on the special requirements resulting from mobile code and agent authorisation in a mobile environment, which restrict the types of solutions that may be viable. Following the description and analysis of a number of architectural models upon which a policy-based framework for mobile code and agent authorisation may be constructed, we outline a list of features desirable in the definitive underlying architecture. Specific implementation requirements for the capabilities of the policy and attribute certificate specification languages and the associated policy engine are then extracted. Candidate policy specification languages, namely KeyNote (and Nereus), Ponder (and (D)TPL) and SAML are then examined, and conclusions drawn regarding their suitability for framework expression. Finally, the definitive policy based framework for mobile code and agent authorisation is described. In the second part of this thesis, a flexible approach that allows consumer products to support a wide range of proprietary content protection systems, or more specifically digital video broadcast conditional access systems, is proposed. Two protocols for the secure download of content protection software to mobile devices are described. The protocols apply concepts from trusted computing to demonstrate that a platform is in a sufficiently trustworthy state before any application or associated keys are securely downloaded. The protocols are designed to allow mobile devices to receive broadcast content protected by proprietary conditional access applications. Generic protocols are first described, followed by an analysis of how well the downloaded code is protected in transmission. How the generic protocols may be implemented using specific trusted computing technologies is then investigated. For each of the selected trusted computing technologies, an analysis of how the conditional access application is protected while in storage and while executing on the mobile host is also presented. We then examine two previously proposed download protocols, which assume a mobile receiver compliant with the XOM and AEGIS system architectures. Both protocols are then analysed against the security requirements defined for secure application download, storage and execution. We subsequently give a series of proposed enhancements to the protocols which are designed to address the identified shortcomings. In the final section of this thesis, we examine OMA DRM version 2, which defines the messages, protocols and mechanisms necessary in order to control the use of digital content in a mobile environment. However, an organisation, such as the CMLA, must specify how robust implementations of the OMA DRM version 2 specification should be, so that content providers can be confident that their content will be safe on OMA DRM version 2 devices. We take the requirements extracted for the robust implementation of the OMA DRM version 2 specification and propose an implementation which meets these requirements using the TCG architecture and TPM/TSS version 1.2 commands

Old Meets New: Media in Education – Proceedings of the 61st International Council for Educational Media and the XIII International Symposium on Computers in Education (ICEM&SIIE'2011) Joint Conference

A conferência ICEM&SIIE'2011 foi organizada pela Universidade de Aveiro (Portugal) – membro do European Consortium of Innovative Universities – e pretendeu reunir investigadores, professores e outros profissionais, a nível nacional e internacional, em torno de um tema aglutinador que pretendeu despoletar e colocar a tónica da discussão na dualidade ―old/new‖, ou seja, os participantes foram convidados a discutir: - os media na educação em ambas as perspetivas, mais tradicionais ou modernas, com incidência numas ou noutras ou, ainda, numa perspetiva comparativa; - a conjugação, adaptação e adoção dos media consoante os contextos e objetivos de utilização; - o que os media implicam em termos de tecnologia, barreiras profissionais e /ou sociais; - a relação custo-benefício da utilização dos media em contexto de aprendizagem; - os media em função dos diversos contextos educativos e dos perfis de aprendizagem dos alunos. Para a conferência foram selecionados 76 artigos organizados em 15 sessões paralelas, 13 posters e 9 workshops. A conferência caracterizou-se pelo caráter internacional dos contributos, reunindo 38 artigos em português, 32 em língua inglesa e 6 em espanhol. Estas atas encontram-se organizadas de acordo com o programa da conferência. Em primeiro lugar incluem-se os artigos (full paper e short paper) por sessão, seguem-se os posters e, finalmente, o resumo relativo aos workshops.The ICEM&SIIE'2011 conference was organised by the University of Aveiro (Portugal) – a member of the European Consortium of Innovative Universities – and aimed at gathering researchers, teachers and other professionals, at national and international level, around a focal topic that might trigger and centre the discussion on the ―old/new‖ duality of media in education. Participants were invited to discuss: - old and new media in education, in isolation or comparatively; - how old and new media in education can be combined, adopted and adapted; - what old and new media in education imply in terms of technological, professional and social barriers; - what cost-benefit relationships old and new media in education entail; - how to compare old and new media in education given their particular educational contexts and the students' learning profiles. 76 papers were selected and organised in 15 paralel sessions, 13 posters and 9 workshops. The conference is characterized by the international character of contributions, gathering 38 papers in Portuguese, 32 in English and 6 in Spanish. These procedings are organised according to the programme of the conference. First we find the full and short papers, per session, then posters and finally the abstracts for the workshops

The Venetian Money Market

The long awaited conclusion to the magisterial Money and Banking in Medieval and Renaissance Venice.Originally published in 1997. In 1985 Frederic C. Lane and Reinhold C. Mueller published the magisterial Money and Banking in Medieval and Renaissance Venice, volume 1: Coins and Moneys of Account. Now, after ten years of further research and writing, Reinhold Mueller completes the work that he and the late Frederic Lane began. The history of money and banking in Venice is crucial to an understanding of European economic history. Because of its strategic location between East and West, Venice rapidly rose to a position of preeminence in Mediterranean trade. To keep trade moving from London to Constantinople and beyond, Venetian merchants and bankers created specialized financial institutions to serve private entrepreneurs and public administrators: deposit banks, foreign exchange banks, a grain office, and a bureau of the public debt. This new book clarifies Venice's pivotal role in Italian and international banking and finance. It also sets banking—and panics—in the context of more generalized and recurrent crises involving territorial wars, competition for markets, and debates over interest rates and the question of usury

Promoção das competências parentais no auto cuidado terapêutico à criança

O presente relatório expõe todo o percurso feito ao longo do estágio no âmbito do curso de Mestrado em Enfermagem, na área de especialização em Saúde Infantil e Pediátrica. A base conceptual do mesmo reporta-se ao Modelo de Auto Cuidado de Dorothea E.Orem. A escolha do tema “Promoção das competências parentais no auto cuidado terapêutico à criança” surgiu devido a uma sucessiva constatação da prática da educação para a saúde não abranger uma base/modelo teórico de enfermagem, o que seria uma mais-valia na sua organização e estruturação, possuir um suporte teórico e científico favorecendo uma atitude coerente frente à promoção do desenvolvimento parental, beneficiando a sistematização do cuidado de enfermagem. Os pais, são segundo a Teoria do Défice de Auto Cuidado (TDACE), agentes de cuidar dependentes, pois têm de colmatar a necessidade terapêutica de auto cuidado (AC) de outros relevantes (a criança), que é socialmente dependente deles. O enfermeiro especialista em saúde infantil e pediátrica (EESIP) é aquele que tem competências para assistir e cuidar desta criança e família, em todos os seus níveis de desenvolvimento, quer na saúde quer na doença. Deste modo, foi tido em consideração a “ (…) a natural dependência da criança, a sua progressiva autonomização e o binómio criança/família como alvo do cuidar do enfermeiro especialista de saúde infantil e pediatria, [que] estabelece com ambos uma parceria de cuidar promotora da optimização da saúde, no sentido da adequação da gestão do regime e da parentalidade” (SIECE 2009, p.21). Para além disso, foi respeitada a interculturalidade das diferentes populações e foi adjudicado o etnocentrismo,adequando o cuidar a cada cultura. Como objectivo geral deste relatório pretendo divulgar o percurso feito e os resultados do trabalho de aprendizagem na prestação de cuidados globais à criança/família, no decorrer do estágio. Pude adquirir competências para promover a adaptação da criança/jovem e família à doença oncológica, através do conhecimento aprofundado de uma instituição de suporte que apoia estas crianças, podendo referencia-la posteriormente. Nos diferentes módulos colaborei e prestei cuidados às crianças/famílias, identifiquei as suas necessidades do ciclo de vida e de desenvolvimento, quer no internamento de pediatria, na neonatologia e na urgência pediátrica, promovendo o desenvolvimento das competências parentais e melhoria do AC terapêutico às mesmas, maximizando a sua saúde e prestando cuidados em situações de maior complexidade. Pude ainda desenvolver a praxis clínica especializada em sólidos e válidos padrões de conhecimento, diagnosticando necessidades formativas, actuando como formadora, favoreci a aprendizagem e competências dos enfermeiros e da criança/família. No fim deste percurso posso referir que foram atingidos totalmente os objectivos inicialmente planeados, com adaptações ao longo dos diferentes contextos.This report exposes the whole course done over the internship under the Master of Nursing, in area of specialization in Pediatrics and Child Health. The conceptual basis of the same reports is based on the Model of Self Care by Dorothea E.Orem. The choice of the theme "Promoting parenting skills in self care treatment to the child" emerged due to a subsequent finding of the practice of health education that should embrace a nursing theoretical basis/model, which would be an asset in their organization and structure, having a theoretical basis and scientific attitude favoring a coherent front to the promotion of parental development and benefiting the systematization of nursing care. The parents are according to the theory of Self Care Deficit (TDACE), dependent care agents, as they have to address the therapeutic need for self care (AC) of other relevant (the child) who is socially dependent on them. The nurse specialist in child health and pediatrics (EESIP) has skills to assist and care for this child and family at all levels of development, whether in health or disease. Thus, it is considered that "(...) the natural dependence of children, their empowerment and progressive binomial child / family as the focus of nursing care specialist pediatrics and child health, establishes a partnership with both care promotes the optimal health in the sense of the adequacy of management arrangements and parenthood "(SIECE 2009, p.21). Furthermore the interculturality of different populations has been respected and is also a granted ethnocentrism, tailoring care to each culture. The overall objective of this report is to inform which course I have taken and show results of the work of learning through a critical analysis of the activities and resources I used in providing comprehensive care to children/families during the internship. I was able to acquire skills to help the working child/youth and family to cancer disease through the knowledge of a supporting institution that supports these children and can reference it later. In different modules I collaborated and provided care for children/families, identified their needs in their life cycle of development, which also includes inpatient pediatrics, neonatology and pediatric emergency, promoting the development of parenting skills and improving the therapeutic to the same AC, maximizing their health and providing care in situations of greater complexity. I could still develop clinical praxis specializing in sound and valid standards of knowledge, acting as a trainer, diagnosing needs, but also favored the learning and skills of nurses and child/family. At the end of this course I can refer that the originally planned goals, along with adaptations of different contexts, were fully achieved