Computer software design, computer programming or maintenance of computer software; providing computer programs, namely, providing temporary use of on-line, non-downloadable software for use in database management, for inventory control, for product warranty processing; technical advice relating to performance, operation of computers, automobiles and other machines that require high levels of personal knowledge, skill or experience of the operators to meet the required accuracy in operating them; designing of machines, apparatus, instruments including their parts or systems composed of such machines, apparatus and instruments; designing, namely, designing computer software for controlling self-service terminals, designing websites for advertising purposes; testing or research on machines, apparatus and instruments