42 platform as a service (PaaS) featuring software for planning, construction, management, simulation, 3D reconstruction, digital twins, augmented reality, virtual reality, servicing, maintenance, repair, inspection, detection, classification, evaluation and assessment of the status of water supply systems, drainage systems, drainage works and water supply works; software as a service (SaaS) featuring software for planning, construction, management, simulation, 3D reconstruction, digital twins, augmented reality, virtual reality, servicing, maintenance, repair, inspection, detection, classification, evaluation and assessment of the status of water supply systems, drainage systems, drainage works and water supply works; providing virtual computer systems via cloud computing; providing temporary use of non-downloadable software applications for the planning, construction, management, simulation, 3D reconstruction, digital twins, augmented reality, virtual reality, servicing, maintenance, repair, inspection, detection, classification, evaluation and assessment of the status of water supply systems, drainage systems, drainage works and water supply works; providing temporary use of non-downloadable software applications for robot control; providing temporary use of non-downloadable geographic information system (GIS) software for inspection of water supply systems, drainage systems, drainage works and water supply structures and the components thereof; providing temporary use of non-downloadable software for documentation; engineering consultancy; engineering services in the fields of piping systems, sewage disposal systems, drainage systems and water supply works; design and drafting construction plans and advice relating thereto; technical project planning, namely drafting of engineering plans; technical design and planning of water supply systems, drainage systems, drainage works and water supply works; inspection services, namely acceptance inspection, warranty inspection and status assessment of water supply systems, drainage systems, drainage works and water supply works; providing information and advice concerning the aforesaid services; remote virtual monitoring of water supply systems, drainage systems, drainage works and water supply works using computer simulation