832 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 D2 Environmental sustainability D2.1 Environment I2.1.1 Proportion of information published on environmental quality X X I2.1.2 Progress degree of ICT in the protection of main city water resources X X X X X X I2.1.3 Effect of flood control monitoring by means of ICT measures X X X I2.1.4 Proportion of water pollution control by means of ICT measures X X X X X X X X X I2.1.5 Proportion of air pollution monitoring by means of ICT measures X X X X X X X X X X I2.1.6 Proportion of toxic substances monitoring by means of ICT measures X X