DCGG: Digital City Group Grid

There is a serious problem in digital city construction which has not been intentioned and solved before. Different cities construct different digital cities using different data formats and different software, which causes that there are many separated digital cities which can not communicate with each other. We applied grid technology successfully in solving the problem, digital city group grid (DCGG) can support the communications and collaborations between different digital city application systems and can make all digital cities in DCGG can run together as a large digital city. Users can visit one digital city after another without logging out or switching and can search any information among all digital cities in DCGG.