Software authoring; Software design and development; Software development for others in the field of software configuration management; Software development in the framework of software publishing; Software porting; Computer software design; Computer software development; Consultancy in the field of software design; Copying of computer software; Custom design of computer software; Customizing computer software; Design and development of computer game software and virtual reality software; Design and writing of computer software; Developing computer software; Developing customized software for others; Image processing software design; Installation and maintenance of computer software; Installation of computer software; Maintenance and updating of computer software; Maintenance and upgrading of computer software; Maintenance of computer software; Rental of software for data processing; Rental of software for Internet access; Rental of application software; Rental of computer software; Renting computer software; Repair of computer software; Services for maintenance of computer software; Services for updating computer software; Smartphone software design; Testing of computer software; Up-dating of computer software; Updating and maintenance of computer software; Updating of software for data processing; Updating of computer software; Updating of computer software for others; Updating of smartphone software; Upgrading of computer software