Computer software as a service (including cloud) for project accounting and managing cost; remote services for measuring the exterior features of buildings, engineering, construction and industrial sites using drones and software; remote services for digitizing information via drones using software, namely, data backup and conversion services; remote quality control services for monitoring equipment at buildings, engineering, construction and industrial sites using drones and software; software services for acquiring and processing real time images acquired for a construction project to monitor and forecast progress of the construction project; providing software services for analyzing monitored progress of a construction project to identify bottlenecks to compliance with a project flow plan; providing software services for analyzing data based on visual surveillance of a construction project to identify construction errors; providing software services for analyzing data based on visual surveillance of a construction project to identify non compliance with safety standards; providing software services for analyzing data based on visual surveillance of a construction project to identify accident risk sites of the project; development of computer software; development of computer programs; computer software as a service for offsite building project management; software as a service for project management; remote quality control, digital data analysis and supervision services for monitoring construction progress, using drones.