Development/installation/maintenance/management of 3D modeling computer software; Development/installation/maintenance/management of 3D scanning computer software; Development/installation/maintenance/management of smartphone software for building design and product design using augmented reality and virtual reality technologies, which allow multiple people to connect simultaneously and collaborate through a network; Development/installation/maintenance/management of computer software for building design and product design using augmented reality and virtual reality technologies, which allow multiple people to access and collaborate simultaneously through a network); Development/installation/maintenance/management of computer software and hardware for remote access; Development/installation/maintenance/management of computer software for e-commerce; Development/installation/maintenance/management of augmented reality/virtual reality/3D modeling technology-related software; Consultancy relating to computer software; Design/development/installation/management for updating of computer programs, mobile electronic devices and website programs; Development/installation/maintenance/management of computer software for video conferencing; Design of 3D technology-related software; Computer software development used in 3D content/stereoscopic 3D projection/3D animation technology; Design of computer-simulated model; Design and development of metaverse content operation software; Maintenance of metaverse content operation software; Design and development of application software for metaverse; Maintenance of application software for metaverse