42 Information technology consulting services in the fields of telecommunications, computer networking, business reengineering, systems integration, client/server solutions, computer software development, and intelligent information systems and products; consulting services in the fields of environmental policy and regulatory development, namely reviewing standards and practices to assure compliance with environmental laws and regulations; alternative dispute resolution; technical analysis services, namely reviewing standards and practices to assure compliance with national defense and industrial C4ISR (Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance) programs; computer systems engineering and integration consulting services featuring analysis, simulation, and modeling of various government operations; computer software design and development for others relating to network modeling, process performance modeling, and decision support and visualization tools; engineering services, namely, specialized engineering in the field of unmanned aerial vehicles.