A Brief Analysis of the Construction and Application of City Information Modeling in Urban Business Districts

City information modeling (CIM) is a database, in which its intelligent and real-time collection functions allow the database to grow or update continuously. There are many types of data so a computing model capable of processing and analyzing large amounts of data is needed. At this time, the application of breaking down the whole into small scenarios and cities has become a necessary stage in the early development of CIM. This article focuses on the core development driving force of the urban economy in commercial districts. In response to the issues that need to be urgently solved in commercial districts, the study analyzes the use of CIM technology to build a “cloud city” for commercial districts and analyzes feasible commercial district scenario applications.