Computer software development; computer software engineering; computer software programming services; software creation; writing of computer software; advisory services relating to computer software; computer security services (design and development of secure computer hardware, software and systems); computer security services (programming and software installation repair and maintenance services); computer software advisory services; computer software consultancy; computer software design; computer software development; computer software engineering; computer software programming services; computer support services (computer hardware, software and peripherals advisory and information services); computer support services (programming and software installation, repair and maintenance services); consultancy in the field of computer software; design and development of computer software (for others); design of computer software; development of computer software; development of computer software application solutions; development of 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); maintenance of computer software; online provision of web-based software; providing information, including online, about design and development of computer hardware and software; rental of computer software; rental of games software; repair of computer software; software creation; software engineering; updating of computer software; upgrading of computer software; writing of computer software