42 Design and development of computer hardware and software; Design and development of software and hardware for others for domestic and military defense purposes, namely, for modeling and simulation of intelligent sensor and processing systems; Engineering services in the field of space sensors, space system architecture, communications networks, data processing architectures, and requirements development; Engineering services, namely, engineering for the National Security Space community, the US Department of the Defense and the Office of the Director of National Intelligence; Scientific research in the field of complex weapons, security, environmental, transportation, and readiness problems; Scientific and technological services, namely, research and design in the field of f complex weapons, security, environmental, transportation, and readiness problems