Identity management systems help users to organise their digital profiles in order to communicate parts of them‚ whenever needed and wanted‚ to communication partners like internet services or personal contacts. Most current identity management research tries to achieve the highest possible degree of data hiding for best privacy. After sketching some of these projects‚ this paper presents a different approach where users are assumed to be interested in presenting themselves to selected online communities or internet services for better personalisation‚ to achieve a consistent reputation‚ or to establish an application-and service-independent internet society. It thereby stresses the aspect of privacy that persons have the option for self-portrayal. To support this thesis‚ a survey is presented which shows that many users who actively participate in Internet communities would make high use of such a system. Finally‚ the project "onefC" is presented which prototypically realises this approach.
Abstract:The Internet has become an important part in every day life for many users. It has changed from an instrument to exchange and link scientific data to an economical and social place, where people spend their working and spare time.But the underlying technology has not adapted to the newly risen demands of communication and collaboration. The user is almost isolated and anonymous when using the web, while still leaving traces threatening their data security and privacy. There is no global concept of "digital citizens" modern collaboration applications could base on. To overcome this lack, this paper introduces an approach of identity enriched session management. It offers the possibility to integrate different (and distinguishable!) users into meaningful relationships. This paper presents the essential concepts of identity enriched sessions and a prototypical realisation which have been developed in the "open net environment for Citizens" (onefC) project.
Die Benutzer des World Wide Webs werden regelmäßig mit seinen vielfältigen Benutzbarkeitsproblemen konfrontiert. Ein gravierender Mangel liegt dabei darin, dass es bis heute kaum brauchbare Konzepte zur Individualisierung der im Web angebotenen Informationen und Dienste gibt, die auch siteübergreifend einsetzbar wären: Suchmaschinen bieten keine personalisierten Ausgaben, Links sind nur durch die Autoren eines Dokuments zu erstellen und Annotationstechniken konnten sich bis heute nicht durchsetzen. Dieses Paper stellt ein neues Konzept von Social Navigation vor, das eine Identitätsinfrastruktur verwendet, um auch global einsetzbar zu sein und typischer Probleme wie des Kaltstartproblems oder des Sparsity-Problems Herr zu werden. Durch eine Identitätsinfrastruktur werden die sozialen Aspekte der Internetnutzung betont und die Voraussetzungen für soziales Navigieren verbessert. Es wird ein Prototyp vorgestellt, der diese Konzepte in Teilen realisiert. Abschließend werden die Ergebnisse einer damit durchgeführten Benutzbarkeitsevaluation diskutiert.
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