Installation and maintenance of computer software; Installation of computer software; Maintenance of computer software; Rental of computer software; Repair of computer software; Software creation; Updating of computer software; Upgrading of computer software; Writing of computer software; Advisory services relating to computer software; Development of software; Software engineering; Software as a service (SaaS); Software development in the framework of software publishing; Design of computer software; Development of computer software; Development of computer software application solutions; Computer software advisory services; Computer software consultancy; Computer software design; Computer software development; Computer software engineering; Computer software programming services; Design and development of computer software; Software engineering services for data processing