Zusammenfassung: Die Kommunikation zwischen Menschen basiert auf Sprache (explizite Kommunikation) und auf unmittelbaren Informationen (implizite Kommunikation). Die unbewusste Berücksichtigung von Kontextinformationen während der Kommunikation kann aber vom Computer nicht automatisch umgesetzt werden. Deswegen ist die Interaktion zwischen Mensch und Computer weitaus schwieriger zu realisieren. Die vorliegende Arbeit befasst sich mit der Erfassung, Verarbeitung und Anwendung der Kontextinformationen bei mobilen Benutzern. Dafür werden die Ergebnisse einer Literaturrecherche über Informationssysteme für mobile Teilnehmer und die daraus abgeleiteten Bewertungskriterien für ein kontextsensitives System vorgestellt. Für die Architektur des Informationssystems SFINKS werden Datenverarbeitungsprozesse konzipiert, die eine optimale Informationsanpassung an einen mobilen Benutzer und seinen wechselnden Kontext ermöglichen. Das System kann seinen Benutzern individuell zugeschnittene Informationen und Dienste zu jedem Zeitpunkt und an jedem Ort bereitstellen.
Communication between people is based on language (explicit communication) and immediate information (implicit communication). However, the language alone determines only some small parts of useful information. Much more of importance is the immediate information, which appear during the communication (such as body language, time, place, current situation etc.). This information is called context information and describes the context in which communication takes place. The unconscious consideration of the situation during the communication and the fundamental understanding of additional information cannot automatically be detected by the computer. Therefore the interaction between a person and a computer is much more difficult to be realize. This work focuses on this topic. It deals with recording, processing and adoption of context information. If a user is mobile, his context changes very fast. The central point of the dissertation is the architecture of the information system SFINKS. The validation of the introduced architecture is carried out in the demonstrator based on different tests. It is executed based on the following evaluation criteria. The system is evaluated regarding the independence of user terminals, interfaces and communication technologies, as well as the extendibility of architecture and context sensitivity.
These changes can be used for the adaptation of user interfaces, for the delivery of relevant information and services as well for the offer of context-sensitive services. To gain knowledge of existing possibilities and solutions, a literature retrieval was carried out about information systems for mobile users and required terms (context, context information, context-sensitive services etc.). The results of the retrieval and the concerning evaluation criteria for a context-sensitive system are introduced in this dissertation.
The system is characterized by the fact, that it provides individual information and services anytime and anywhere to the users. The scientific innovations conists in the conception of the data processing, which realizes an optimal adaptation of information to a mobile user and his changing context. The system has not only been theoretically designed, but also practically built. The dissertation contains the description of the demonstrator and the user interfaces.