Based on the text above pls summarize on the implementations, objectives and state how successfully by this implementation they had overcome the real life issues. The summary should not less than 100 words and you have to use mind map to explain the facts and examples.

3.5 From Citizen-Led Smart City to Society 5.0 Smart Cities in the EU The EU has supported the development and implementation of smart cities pursuant to the European Commission's medium-term vision "Europe 2020" (ratified in March 2010) and a program forming part of this vision, "Horizon 2020," which is the EU's largest program for supporting research and innovation, both financially and otherwise (Horizon 2020 runs from 2014 to 2020). In 2015, the European Commission launched the European Alliance for IoT Innovation (AIOTI) (Nomura 2017; NICT Europe Center 2017; Oshima 2016). Such institutional backing has yielded countless smart city models in Europe. These models feature a broad array of smartification not only smart energy, but also smart transport, smart distribu- tion, smart waste, and many other smart systems. In the following section, we focus on the example of Barcelona