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Previous screen readers provide blind WWW-users only with the textual contents of the web pages, but exclude the access to important information coded in the layout of web pages. The approach we introduce here shall overcome the layout barrier of webpages with the help of three-dimensionally auditory objects ("hearcons") which are positioned in an auditory(More)
In mobile working situations users have to take care of their environment and interact with a mobile device. Besides the double workload an attention switching, because of the twofold usage of the visual sense takes place. An alternative solution for mobile scenarios is the usage of an auditory environment for an eyes-free interaction. This paper presents(More)
In this paper, we present the Niccimon platform for the flexible and rapid development of location-aware mobile applications. The platform features a modular system design which provides application-independent modules that provide function-ality for tasks typically needed in mobile applications such as location-sensing, location-visualization, presentation(More)
Through recent developments in the segment of mobile devices like personal digital assistants (PDA) the usage of mobile applications in different areas of our normal life increases. New applications support mobile users with location-aware information. But today's systems are not usable for all: there still exist various barriers for blind and visually(More)
This paper describes the functionality, the used models and an evaluation of the Visual Auditory Interface Design (Visual-AID) prototyping tool which assists the Usability Engineering Process for Auditory User Interfaces (AUI). The process generalizes the experiences made in the INVITE-ZIB-Project, which creates an auditory Web browser for blind users(More)
The latest achievements in the field of mobile networks and ubiquitous computing enable the integration and combination of technologies like Internet, Java, and multimedia in a new kind of application that employs distribution, wireless networking, localisation, and movement---mobile location-aware multimedia games. The approach presented is an innovative(More)
Der Bericht gibt einen Einblick in die praktischen Probleme, die bei der theoriegeleiteten Gestaltung von auditiven Benutzungsoberflächen auftreten. Auf Grundlage mehrerer Projekte zur Entwicklung von auditiven Benutzungsoberflächen ist eine verall-gemeinerte Vorgehensweise entstanden, die in anderen Projekten als Handlungsrahmen eingesetzt werden kann.(More)
Mobility represents a key factor for social inclusion. People with disabilities need help when moving in an physical environment. Mobile applications can improve their mobility by supporting the process of finding, using and accessing information in and about their physical environment. These applications however are permanently affected by changing(More)