ITU‐T's Technical Reports and Specifications 801 2 References [ITU‐T L.KPIs‐overview] Technical Specifications on overview of key performance indicators in smart sustainable cities (2014). [ITU‐T L.KPIs‐ICT] Technical Specifications on key performance indicators related to the use of information and communication technology in smart sustainable cities. [ITU‐T L.KPIs‐Supp] Technical Report on key performance indicators definitions for smart sustainable cities. [ITU‐T TR SSC Def] Technical Report on smart sustainable cities: an analysis of definitions (2014). [UN Habitat report] UN Habitat (2013), State of the World's cities 2012/2013, Prosperity of Cities. [ISO 37120] ISO 37120:2014, Sustainable development and resilience of communities – Indicators for city services and quality of life. [OECD KE] Organisation for Economic Co‐operation and Development (1996), The knowledge‐based economy. 3 Definitions 3.1 Terms defined elsewhere These Technical Specifications use the following terms defined elsewhere: 3.1.1 City [ITU‐T L.KPIs‐overview]: An urban geographical area with one (or several) local government and planning authorities. 3.1.2 City sustainability [ITU‐T L.KPIs‐overview]: The sustainability of smart city is based on four main aspects: Economic: The ability to generate income and employment for the livelihood of the inhabitants. Social: The ability to ensure well‐being (safety, health, education, etc.) of the citizens can be equally delivered despite differences in class, race or gender. Environmental: The ability to protect future quality and reproducibility of natural resources. Governance: The ability to maintain social conditions of stability, democracy, participation, and justice. 3.1.3 ICT companies [ITU‐T L.KPIs‐ICT]: Companies which provide products and/or services with respect to information and communication technologies. 3.1.4 Knowledge economy [OECD KE]: Economies which are directly based on the production, distribution and use of knowledge and information. 3.1.5 Smart sustainable cities [ITU‐T TR SSC Def]: A smart sustainable city is an innovative city that uses information and communication technologies (ICTs) and other means to improve quality of life, efficiency of urban operation and services, and competitiveness, while ensuring that it meets the needs of present and future generations with respect to economic, social, environmental as well as cultural aspects.