Computer software consultancy; Computer software design; Computer software development; Computer software engineering; Computer support services (computer hardware, software and peripherals advisory and information services); Computer support services (programming and software installation, repair and maintenance services); Computer system design; Information technology (IT) services (computer hardware, software and peripherals design and technical consultancy); Installation and maintenance of computer software; Installation of computer software; Maintenance of computer programs; Maintenance of computer software; Repair of computer software; Updating of computer programs; Updating of computer software; Upgrading of computer software; Writing of computer software; Hosting of software as a service (SaaS); Online provision of web-based software (non-downloadable); Software creation; Software development in the framework of software publishing; Software engineering