74 ITU‐T's Technical Reports and Specifications Ref. No. Category Definitions/Features Key concept/ Keywords Source 27 Corporate Hitachi's vision for the \"smart sustainable city\" seeks to achieve concern for the global environment and lifestyle safety and convenience through the coordination of infrastructure. Smart sustainable cities realized through the coordination of infrastructures consist of two infrastructure layers that support consumers' lifestyles together with the urban management infrastructure that links these together using IT. Coordinated infrastructure, lifestyle safety, lifestyle convenience, urban infrastructure, IT. Hitachi (2014) 28 Corporate A smarter city uses technology to transform its core systems and optimize finite resources. At the highest levels of maturity, a smarter city is a knowledge‐based system that provides real‐time insights to stakeholders, as well as enabling decision‐makers to proactively manage the city's subsystems. Effective information management is at the heart of this capability, and integration and analytics are the key enablers. Technology, transform, optimize finite resources, real‐time information, decision‐making information, information management, integration, analytics. IBM (2013) 29 Corporate Five (5) steps to make a city smart: (i) Vision: setting the goal and the roadmap to get there. (ii) Solutions: bringing in the technology to improve the efficiency of the urban systems. (iii) Integration: combining information and operations for overall city efficiency. (iv) Innovation: building each city's specific business model. (v) Collaboration: driving collaboration between global players and local stakeholders. Urban systems, efficiency, technology, integration, innovation, efficiency. Schneider Electric (2014)