Today, we are living in an era of city. Many cities around the world are exposed and vulnerable to natural disasters and environmental pollution due to rapid urbanization and population concentration. Most of these city problems occur in space and as a solution to all these problems, Digital Twin is continuouslybeing introduced. A digital urban space infrastructure and multi-dimensional spatial data analysis are required to effectively solve and deal with various city problems. One of problem in land administration aspect, to change ownership and get a permit take a long time. In order to improve this situation, digital twin concept is proposed. It’s operation and management became possible as the information systems took a transition from paper to computerized files, from files to integrated databases, from two-dimensional to three-dimensional data, and as transition took place, the need for a virtual urban space or "DigitalTwin" that can integrate distributed urban data into one came to fore. In this study, the new preprocess was suggested to use Digital Twin concept in order to reduce time line and to make an efficient work process for land administration.

• 곽병용(서울시립대학교 공간정보공학과) | Kwak ByungYong (University of Seoul, Department of Geoinformatics)