Matthias Merdes

Learn More
What are the most suitable interaction paradigms for navigational and informative tasks for pedestrians? Is there an influence of social and situational context on multimodal interaction? Our study takes a closer look at a multimodal system on a handheld device that was recently developed as a prototype for mobile navigation assistance. The system allows(More)
In this paper we describe a new approach for increasing the reliability of ubiquitous software systems. This is achieved by executing tests at run-time. The individual software components are consequently accompanied by executable tests. We augment this well-known built-in test (BIT) paradigm by combining it with resource-awareness. Starting from the(More)
The development of a toot for reconstructing UML sequence diagrams from executing Java programs is a challenging task. We implemented such a tool designed to analyze any kind of Java program. Its implementation relies heavily on several advanced features of the Java platform. Although there are a number of research projects in this area usually little(More)
In the research domain agent-based systems are widely used for mobile and distributed information systems. Their underlying paradigm provides excellent mechanisms to isolate tasks in independent modules that can be re-used and combined in multiple ways. In order to facilitate the communication between such agents a common domain-knowledge needs to be(More)
In this paper, we describe the concept of a new modality for interaction with digital maps. We propose using inclination as a means for panning maps on a mobile computing device, namely a tablet PC. The result is a map which is both physically transportable as well as manipulable with very simple and natural hand movements. We describe a setup for comparing(More)
Recent developments in PDA and networking technologies offer new opportunities for mobile computing. We will investigate these opportunities for the field of transplantation medicine. The Collaborative Transplant Study (CTS) is the largest international voluntary study in this field. More than 300.000 data sets for organ trans-plantations allow detailed(More)