828 ITU‐T's Technical Reports and Specifications Company sources: o) Ericsson, networked society city index (Annex O); p) IBM, smarter city assessment (Annex P); q) IDC, smart cities index (Annex Q); r) PricewaterhouseCoopers (PwC), cities of opportunity index (Annex R); s) Siemens, green city index (Annex S). This body of knowledge was analysed and compiled in two tables: Table 1 compares the different indexes, identifying whether or not they include indicators related to the key SSC dimensions and sub‐dimensions identified above. Table 2 contributes further to this analysis, by identifying the number of similar indicators that exist between the different set of indicators and the SSC dimensions, as well as the percentage of similar indicators and the distribution of these indicators.