Suchergebnisse

Ubiquitous computing - the complex electronic networking of things that communicate - is considered a promising innovation path worldwide. Intensive R&D activities and political strategies are aimed at promoting practical technologies and applications. Where do we currently stand on the path to the "Internet of Things"? Which practical projects already show the potential that can be exploited by implementing the basic idea of ubiquitous computing? What technical, legal and social challenges must be overcome to achieve this - and what can be the contribution of politics? In the light of these questions, the authors analyse the status quo and the perspectives of ubiquitous computing and illustrate their findings with examples from trade, logistics and health care, among others. the fascinating "Brownie technology" of ubiquitous computing must, however, still be comprehensively made fit by those involved in business, society and politics if its applications are really to become economically attractive, socially acceptable and helpful in overcoming social ...

Mit Ubiquitous Computing bricht eine neue Stufe im Rechnerzeitalter an. In der Umgebung eingebettete Prozessoren sowie eine Vielzahl von beliebigen Sensoren liefern umfangreiche Informationen und bieten neuartige humanzentrierte Anwendungen zur Unterstützung des Menschen. Dabei ist sicherzustellen, dass der Zugriff auf die Informationen und Dienste nur autorisierten Personen möglich ist. Herkömmliche Ansätze zur Autorisierung von Zugriffen auf Daten und Dienste erfordern eine vom Benutzer aktiv durchgeführte Authentisierung, die nach den Prinzipien "etwas tragen" oder "etwas wissen" arbeiten. Dies widerspricht den Grundsätzen der Unaufdringlichkeit und Humanzentriertheit im Ubiquitous Computing. Daher sind die bisher bekannten Verfahren hier nicht einsetzbar. Der Lösungsansatz dieser Arbeit basiert auf der These, dass viele Anwendungen und Informationen in einer offenen ubiquitären Umgebung durch die Verwendung von Kontextinformationen vor Missbrauch geschützt werden können. Voraussetzung dafür ist die Bereitstellung von umfangreichen Kontextinformationen und das Vorhandensein von Raummodellen, wie es in einer ubiquitären Umgebung gegeben ist. Diese Arbeit untersucht die Begriffe "Kontext", "Kontextinformationen" und "Kontextabhängigkeit" in der Literatur des Ubiquitous Computing und nimmt eine Klassifikation, Spezifikation und Modellierung von Kontextinformationen vor. Es wird das im Rahmen dieser Arbeit entwickelte Modell zur kontextabhängigen Zugriffskontrolle vorgestellt sowie eine neue Sprache zur Spezifikation von kontextabhängigen Politiken. Anhand der Beschreibung der entwickelten Prototypen einer kontextabhängigen Zugriffskontrolle und Kontextinfrastruktur wird die Machbarkeit gezeigt.

Falk Zwicker analysiert die Auswirkungen der mithilfe von RFID-Technologie realisierten Ubiquitous-Computing-Lösungen auf die Prozesse in verschiedenen Kliniken. Auf Basis der Ergebnisse aus Forschungsfallstudien, die er in drei Einrichtungen durchgeführt hat, entwickelt der Autor ein Hypothesengerüst, das die identifizierten Ursache-Wirkungszusammenhänge verdeutlicht. Dr. Falk Zwicker ist wissenschaftlicher Mitarbeiter von Prof. Dr. Torsten Eymann am Lehrstuhl für Wirtschaftsinformatik (BWL VII) der Universität Bayreuth.

Ubiquitous computing analysis represents an emerging area that implements communication technologies in day-to-day life actions. Ubiquitous computing changes the methods in which people use computers, considering these are involved in everyday aspects. In ubiquitous computing, several types of processes operate automatically in the background and communicate on the user's account. The ubiquitous computing theory is to provide any information for everyone at anytime and anywhere instantly. Mobile ad-hoc Networks are currently a growing technology for the next generation of wireless communication networks. A mobile ad-hoc network can portray as a military or rescue operation network in which a set of mobile nodes are used to send out a mission operation in diplomatic terms. This paper presents common architecture principles of universal systems and analyses significant features in context-aware ubiquitous systems. The main purpose of this work is to define a principle for researchers who are new to ubiquitous computing and want to gain depth on analysis and implementation of a novel method for the ubiquitous computing system in military sectors, in order to contribute towards further research regulations expected into the quality-of-service pledge of ubiquitous computing. The ubiquitous computing is the future of technology related to the internet or smart devices. Moreover, the applicability of technologies found in smartphones, smart TVs and sensors can guide to an increase in strategic capabilities, like sensing and detecting, exchanging and sharing unique real-time data in the military field. This study aims to sketch particular methods by which the learning and teaching methods can be improved. The intelligence of technology advanced in the military sectors along with ubiquitous computing providing a rise in optimization, security, and defence.

By using various data inputs, ubiquitous computing systems detect their current usage context, automatically adapt their services to the user's situational needs and interact with other services or resources in their environment on an ad-hoc basis. Designing such self-adaptive, context-aware knowledge processing systems is, in itself, a formidable challenge. This book presents core findings from the VENUS project at the Interdisciplinary Research Center for Information System Design (ITeG) at Kassel University, where researchers from different fields, such as computer science, information systems, human-computer interaction and law, together seek to find general principles and guidelines for the design of socially aware ubiquitous computing systems. To this end, system usability, user trust in the technology and adherence to privacy laws and regulations were treated as particularly important criteria in the context of socio-technical system design. During the project, a comprehensive blueprint for systematic, interdisciplinary software development was developed, covering the particular functional and non-functional design aspects of ubiquitous computing at the interface between technology and human beings. The organization of the book reflects the structure of the VENUS work program. After an introductory part I, part II provides the groundwork for VENUS by presenting foundational results from all four disciplines involved. Subsequently, part III focuses on methodological research funneling the development activities into a common framework. Part IV then covers the design of the demonstrators that were built in order to develop and evaluate the VENUS method. Finally, part V is dedicated to the evaluation phase to assess the user acceptance of the new approach and applications. The presented findings are especially important for researchers in computer science, information systems, and human-computer interaction, but also for everyone working on the acceptance of new technologies in society in general

This paper aims to describe a relatively new learning paradigm, known as ubiquitous learning or u-learning; its name derives from the support it receives from the ubiquitous computing technologies. The paper also intends to provide some fundamental information related to u-learning with application in the ESP courses in the Romanian military. Ubiquitous learning or u-learning is a relatively new learning paradigm; it is about the learning process keeping abreast of the latest technologies to be incorporated in the material support of courses. These last decades English language learning has seen an unprecedented development insofar as methods, technologies and their support are concerned. We have witnessed the fast shift from the traditional learning methods and means to e-learning, and further on to m-learning. Now we are shifting to u-learning. What has made these learning concepts possible is the boom of handheld devices, all networked and available worldwide, in all environments (both private and professional), keeping in mind that one of the many definitions of u-learning is `anywhere and anytime learning`. Another aim of this paper is to highlight the advantages and disadvantages u-learning can offer to students, by looking into the benefits or flaws this kind of learning may ultimately result in.

The high penetration of mobile devices and networks globally implies that mobile technology could be used very effectively in the health field in order to compensate for the lack of resources problem, particularly in developing countries. With the proliferation of mobile technologies, mobile health (m-health) will play a vital role in the rapidly growing electronic health (e-health) area. The form of transparency between health and patients is a need to compensate for the lack of medical resources. E-health solutions, provides patients with mobile services to support and optimize their treatment based on the monitoring of certain physiological parameters. This category of e-health is called mobile health monitoring. Obesity is a big public health challenge and its prevention requires patients with healthy eating and physical activity awareness in their daily lives. It is estimated that over 50% of world population will be obese by 2025 if no action is taken otherwise. Therefore, obesity is rightly regarded by the World Health Organization as the global epidemic of the XXI century. In the European Union, including Portugal, the incidence and prevalence of either pre-obesity or obesity have been rising as an important public health problem. In Portugal, the current situation presents high prevalence of obesity and its incidence, morbidity and mortality is also increasing. Furthermore, people usually use mobile phone in their daily life. Then, it creates an opportunity to create a mobile solution for personal support to reduce obesity. This work proposes the creation of a mobile health (m-health) system for Android operating system using ubiquitous computing approaches. A solution, called SapoFitness, is proposed for a dietetic monitoring and assessment, and will be carried out with SAPO – Portugal Telecom. SapoFitness is customized per user to keep a daily personal health record (PHR) of his/her food intake and daily exercise. This PHR contains vital health information and will evaluate the nutritional state of the user. The system monitors the user and sends alerts/messages concerning his/her diet program taking into account also his/her physical activity. SapoFitness is a challenged mobile application that delivers the action to the user, anytime and anywhere, motivating him for a healthier life style. The system will use the Web Services architecture, which appears as a new model for distributed computing, represents the latest proposed solution for development and application integration. Web services come with a promise to definitely bring down the barrier of communication between heterogeneous platforms, revolutionizing the way people develop applications targeted for the Internet, transforming it into a software architecture, service-oriented. SapoFitness was evaluated in different mobile devices (Sony Ericsson x10 mini, HTC Magic, TMN a1 and Samsung Galaxy Tab), taking into different screens sizes. The system also was been evaluated and validated by SAPO team and it is ready for use.