Ministry of Land, Infrastructure and Transport (Korea): “…… But the scope of data collected will be kept to minimum and a due procedure should be followed in acquiring the data.
The motivation of the paper is still unclear for me in the introduction, and the reasons for the limitations of smart city services are not clear in Section 2, but is much better explained later in the paper, which is a nice improvement. I believe that explaining standard constraints (due to the multiplicity of service providers) and coupling between services in the introduction to motivate the paper would be valuable. Indeed, if my understanding is correct, they are the factors that cause the limitations of smart city services the authors want to address.