Computer software engineering; computer software programming services; computer support services (programming and software installation, repair and maintenance services); consultancy in the field of computer software; diagnosis of faults in computer software; information technology (IT) services (computer hardware, software and peripherals design and technical consultancy); installation and maintenance of computer software; installation of computer software; installation of middleware (software); installation, repair and maintenance of middleware (software); repair of computer software; software creation; software engineering; updating of computer software; upgrading of computer software; writing of computer software