42 Design and updating of software for testing and maintaining electronic equipment and electronic used in watercraft, aircraft, spacecraft, military vehicles and missiles and excluding railway vehicles; designing of software for test benches used for automatic testing of electronic equipment and avionics; [ computer programming; design of computer programs and software for materials testing, diagnosing of fabrication flaws and analysis of failed operation of electronic and electric apparatus used in military land vehicles and space vehicles excluding railway vehicles; ] computer software installation; scientific and technological services, namely, analysis, testing, engineering, consulting, research, maintenance in the field of systems and components testing, system engineering, manufacturing, maintenance, electronic, electro-optics, software and avionics; [ scientific research in the field of systems and components testing, system engineering, manufacturing, maintenance, electronic, electro-optics, software and avionics; ] design of systems and components test solutions, complex systems, manufacturing tools, maintenance tools, engineering tools, electronic equipment, electro-optics equipment, software, avionics equipment; [ industrial research in the field of systems and components testing, system engineering, manufacturing, maintenance, electronic, electro-optics, software and avionics; appraisals in the nature of testing, analysis, and evaluation of systems and components testing equipment, system engineering equipment, manufacturing processes, maintenance processes, electronic components, electro-optics, software and avionics to assure compliance with industry standards; scientific and technology research in the field of engineering, but excluding engineering in relation to railway vehicles; research and development of new products for others; surveying services; scientific and technological services, namely, technical tests of military land vehicles except railway vehicles, aircraft, marine vehicles, space vehicles, and missiles; ] calibration of electronic and electric components, computers, computer peripherals and their subassemblies; [ technical consulting in the field of systems and components testing and system engineering for electronic components, electro-optics, software, and avionics ] all of the foregoing excluding services in the field of maintenance, security, signaling, engineering, surveying and consulting in the railway field