Design and development of computer software, providing software as a service (SAAS) services featuring computer application software for wired and wireless computers, handheld and desktop computers, namely, software for- photogrammetry, photogrammetry services, drones, drone flying, architectural and urban planning services; services of engineers and scientists undertaking evaluations, estimates, research and reports of photogrammetry; services for surveying and inspection using drones; Cloud-based software services for 3D reconstruction; services of engineers and scientists undertaking evaluations, estimates, research and reports for 3D reconstruction; services for creating digital twin architecture, and providing 3-D and 4-D spatial data