BIM & GIS Connectivity paves the way for really Smart Cities

We now see several good examples of Smart City and Geodesign initiatives around the world. They often depend on BIM & GIS data. However, interoperability is a challenge that must be adressed in a more efficient way.So what is required to take the leap from good examples to broad and mainstream application in urban and regional development?In this article I describe some key success factors for this development, and outline important challenges. I also touch on the V-Con innovation project addressing these challenges