While analyzing data belonging to complex subjects, interesting details or patterns are still easily overlooked, even with modern visualization tools. Therefore, those analyses are mostly performed by several persons. For this, large-scaled screens are used to display the data, but those screens are only limited operable with common input devices, like keyboard and mouse. For a couple of years devices for collaborative work are available, for example in the form of tabletops. This thesis introduces a concept for the interaction of users with a powerwall and a tabletop-based control for collaborative work. Based on this concept, a framework was developed which allows the control of a powerwall through a tabletop and the integration of additional devices. The interaction concept of the tabletop control was evaluated by a study and subsequently a prototype was developed.