The group, “Semantics Visualization” of Fraunhofer IGD, developed in the context of the joint project MErK in cooperation with Fraunhofer IOSB innovative user interfaces and visualizations for representing semantic relations in different domains. Within two project iterations, three different visualizations for interacting with semantic information were already provided to the project partners. In this context, the main focus is handling complex content and a system based on the SemaVis framework. The implemented system allows an intuitive interaction with these complex data structures. In the last project iteration, semantic visualizations are integrated into the system of Fraunhofer IOSB to allow seamless data access and to exhaust the benefit of graphical visualizations.