English：

The processing method of traditional isolated parameter intervention model, especially incomplex special-shaped component model, is difficult to meet the needs of practical work in terms offlexibility, data correlation, accuracy and efficiency. In addition, the problem of coherence andconsistency for data in different stages is prominent. Based on this background, in the decorative facadecurtain wall of a public building in South China, the full parametric BIM forward process is proposed.covers the whole process application from the preliminary modeling scheme to the detailed design, thedeepened design, the component optimization, the industrial production and the rationalization of theassembly construction, so as to ensure that, each link can be efficiently coordinated under parameter-driven. Finally, the data and models with clear automatic processing data and strong correlation areoutput, as well as the automatic update and output is achieved of drawings with cross-stage linkage. Itimproves the automation and intelligence level of BIM technology implementation, and further exerts thevalue of digital transformation.