Manages the application of human performance principles, methodologies, and technologies to the design of human-machine systems and products. Oversees the development and implementation of research methodologies and statistical analysis plans to test and evaluate developmental prototypes used in new products and processes, such as cockpit designs, user workstations, and computerized human models. Manages the collaboration with design engineers to establish system design, operating, and training requirements and to ensure optimized human-machine interfaces. Directs the identification and analyses of technological problems or risks, performance theoretical human factors investigations, and development and implementation of research and analysis plans.