Computer software consultation; computer software development; computer software design for others; consulting services in the field of design, selection, implementation and use of software systems for others; information technology consultation; design, development, and implementation of software in the fields of cyber security and information assurance, data center management, and development of secure infrastructure; Engineering services, namely, research, design, development, systems engineering and analysis, business process engineering, testing and integration of hardware and software in the fields of missile defense, space and aviation; Systems engineering; computer systems simulation and analysis; computer modeling and simulation; Scientific research and design services rendered to government and private industry in the areas of national security technology, national defense, design and integration, test and evaluation, logistics, defense communications, industrial and business services, space transportation and exploration, space systems analysis, security systems and support, information and communications