82 ITU‐T's Technical Reports and Specifications Ref. No. Category Definitions/Features Key concept/ Keywords Source 42 Corporate A sustainable city is made up of three (3) main parameters to make sure that there is an overall development of energy, health care, buildings, transport, and water management in a city: (i) Environmental care – With right technologies, cities will become more environmentally friendly. (ii) Competitiveness – With the right technologies, cities will help their local authorities and businesses to cut costs. (iii) Quality of life – With the right technologies, cities will increase the quality of life for their residents. Quality of life, technologies, authorities, buildings, transport, water. Siemens (2014) 43 Corporate As nations look to rebuild their aging infrastructures and at the same time take on the challenge of global climate change, Patel argues that resource usage needs to be at the heart of their thinking. We must also take a fundamental perspective in examining \"available energy\" in building and operating the infrastructure. Only if we use fewer resources to both build and run our infrastructures, he says, we will create cities that can thrive for generations to come. We can only build in that way, he suggests, if we seamlessly integrate IT into the physical infrastructure to provision the resources – power, water, waste, etc. – at a city scale based on the need. Infrastructure, energy, IT, power, water, waste. Patel,‐Hewlett Packard (2014)