Aptima designs user interfaces that improve human performance and support team collaboration in complex applications. We apply state-of-the-art techniques such as Cognitive Work Analysis and Ecological Interface Design to develop multifunction displays that integrate information from multiple data sources and different functional domains. Aptima’s work in this area has included conceptual interfaces for the control of unmanned vehicle systems, mission-critical control functions, and intelligence analysis systems. Our usability techniques and mobile usability laboratory assess fundamental usability features such as system functionality, workflow, and display features.