scientific and technological services and research and design relating thereto; computer and software design and development; design and development of computer hardware and software; software design and development; design and development of software; design, maintenance and updating of computer software; computer software design; development and updating of computer software; maintenance, updating and design of computer software; design and development of computer software, and consultancy services relating thereto; creation, maintenance, and updating of computer software; installation and maintenance of computer software; consultancy and information services relating to computer programming; designing of computer programs; programming of educational software; computer software customisation; programming of computer programs; updating and maintenance of computer software; development and testing of computer software; design and development of on-line computer software systems; configuration, installation, fault diagnosis, repair, upgrading and maintenance of computer software; design and development of data processing software; installation, maintenance and updating of computer programs; computer software and hardware design