In safety critical control domains, such as Air Traffic Management (ATM), a detailed understanding of the complex interactions and workflow of users is essential for improving the design of supporting tools. However, few frameworks account for temporal sequences of actions and levels of cognitive control. In this paper, we discuss how interaction in the control room can be seen as processes formed by a framed sequence of directly and indirectly related events, external events as well as user actions. To untangle this complexity, we propose to combine different analysis approaches, the Joint Control Framework and visual sequence mining, which can complement each other to reveal patterns of interactions within and between the processes and assign meaning to them.