Software authoring; Software porting; Software development in the framework of software publishing; Computer software design; Developing computer software; Customizing computer software; Computer software consultancy; Computer software consultation; Computer software consulting; Software engineering services; Maintenance of computer software; Testing of computer software; Computer software design, computer programming, and maintenance of computer software; Copying of computer software; Updating of computer software; Software design and development; Updating of smartphone software; Upgrading of computer software; Installation of computer software; Repair of software; Developing and updating computer software; Computer software installation and maintenance; Computer programming and software design; Computer software design and updating