Computer software design, computer programming, or maintenance of computer software; 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 of packaging and wrapping materials, designing websites for advertising purposes; 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 the performance and operation of computers and other computer-based machines that require high levels of personal knowledge, skill, or experience of the operators to meet the required accuracy in operating them; testing or research on machines, apparatus and instruments