842 ITU‐T's Technical Reports and Specifications Table 1 – Comparison of KPIs between index systems and sets of KPIs Dimension Sub‐ Dimension Indicators ISO IDI UN‐Habitat CIC MOHURD ECI Italy TTC GCIF GPC ESCI ERMC EUSI Wheel Ericsson IBM IDC PwC Siemens I6.3.2 Improvement of waste water recycling with ICT measures X X X X X X X X D6.4 Municipal pipe network I6.4.1 Drainage system management with ICT measures X X X X X I6.4.2 Lighting system management with ICT measures X X I6.4.3 Gas system management with ICT measures X X X X I6.4.5 Water saving smart metering X X X X I6.4.6 Electricity supply system management with ICT measures X X X X X X X I6.4.7 Improvement of underground pipelines and spatial integrated administration with ICT measures X X