42 engineering services, namely, development of engineering designs for software, sensor systems, weapons systems, and hardware systems for battle management, command and control, modeling and simulation, and analysis, all in support of missile defense systems; engineering services, namely, development of engineering designs for software, sensor systems, weapons systems, and hardware systems for integrated vehicle health management systems, aviation data analysis and aviation database software; engineering services, namely, development of engineering designs for software, sensor systems, weapons systems, and hardware systems for space program design reviews, space program risk management, space program interface control, and space program technical planning; engineering services rendered to the government in the fields of missile defense, aviation, space programs, testing and evaluation of software, sensor systems, weapons systems, and hardware systems, validation and verification of software, sensor systems, weapons systems, and hardware systems; providing quality assurance services in the field of space programs