目前研究应用BIM(Building Information Modeling)的单位较多,大家纷纷提出自己的观点。继3D之后,迅速出现了4D、5D、6D等,当然还有BIM平台。那么BIM到底有多少个D?这是一个值得思考的问题。如果按照BIM字面意思来理解,信息(Information)是设计、施工过程所产生的各种数据集,而模型(Modeling)则是各种 At present, there are many units for research and application of Building Information Modeling (BIM), and everyone has put forward their own views. Following 3D, the rapid emergence of 4D, 5D, 6D, etc., of course, BIM platform. So how many BIMs does BIM have? This is a question worth considering. According to the literal meaning of BIM, information is the data set produced by the design and construction process, and the modeling is various