42 Computer software design; Computer software design for others; Computer software development; Computer software development in the field of digital advertisers, publishers, and ad agencies; Customizing computer software; Database design and development; Database development services; Design and development of computer software; Developing computer software; Platform as a service (PAAS) featuring computer software platforms for analyzing and optimizing online advertising, marketing, and digital media buying; fully automating digital advertising for buyers to reach their target audiences, deliver high-impact brand messages; creating predictive, optimized and consumer-oriented advertisement campaigns; Updating and design of computer software; Updating of computer software; Updating of computer software for others; Design and development of on-line computer software systems; Design, installation, updating and maintenance of computer software; Design, maintenance, development and updating of computer software; Developing and updating computer software; Maintenance and updating of computer software