Computer hardware and software design; Computer network design for others; Computer security consultancy; Computer software consulting; Computer software design for others; Custom design of computer software; Debugging computer software for others; Developing computer software; Developing and updating computer software; Installation of computer software; Updating of computer software for others

Research and development of new products for others; design, installation, updating and maintenance of computer software; computer hardware consultancy; rental of computer software; computer systems analysis; computer system design; computer software consultancy

Research and development of new products for others; design, installation, updating and maintenance of computer software; computer hardware consultancy; rental of computer software; computer systems analysis; computer system design; computer software consultancy