106 ITU‐T's Technical Reports and Specifications Ref. No. Category Definitions/Features Key concept/ Keywords Source 98 Academic Eco‐cities focus on: (i) entrepreneurship. (ii) environment. (iii) sustainable urban development. Business, environment, sustainability. Rapoport, E. (2014) 99 Academic Smart cities should focus on: (i) improvement of urban living capacity. (ii) resource efficient development. (iii) low carbon economy. (iv) use of ICT to manage complex urban system. Urban, resources, economy, people. Alusi, A., Eccles, R. G., Edmondson, A. C., Zuzul, T. (2011) 100 Academic Smart city triple helix: human and social relations connecting the intellectual capital, natural wealth and governance of their regional development. People, intelligent, development, governance and administration, natural, resources. Njikamp, Lombardi, P., Giordano, S., Caraglui, A., Del Bo, C., Deakin, M. 101 Academic/ Corporate Key aspect of smart cities is a plan for efficient management of utilities enabled by technologies such as those entailing smart metering of the residential consumption of electricity, water or gas. Technology, utilities, efficient, water, electricity. Monedero, D. R., Bartoli, A., Hernandez‐Saerrano, J., Forne, J., Soriano, M. (2013) 102 Academic Features of smart cities involve the use of discrete future Internet technologies (RFID), improving e‐governance, providing and environment for innovation. ICT, technology, governance and administration. Balloon, Pieter, Glidden, J., Kranas, P., Menychtas, A., Ruston, S., Van der Graaf, S. (2011)