Definition of building information model

Building information modeling is a new tool in architecture, engineering and civil engineering. The term "building information model" or "building information model" was created by Autodesk. It is used to describe those computer-aided designs that are mainly three-dimensional graphics, object-oriented and related to architecture. Jerry Laiserin popularized the technology provided by Autodesk, Bently Systems and Graphisoft to the public.

BIM (Building Information Modeling) technology is a data-based tool applied to engineering design, construction and management. By integrating the data-based and information-based models of buildings, sharing and transmission can be realized in the whole life cycle of project planning, operation and maintenance, so that engineers and technicians can correctly understand and efficiently respond to all kinds of building information, provide the basis for collaborative work for design teams and construction subjects including buildings and operation units, and improve production.

Here, I quote the definition of BIM in American National BIM Standard (NBIMS), which consists of three parts:

(1)BIM is a digital expression of the physical and functional characteristics of a facility (construction project);

(2)BIM is a shared knowledge resource and a process of sharing information about this facility, which provides a reliable basis for all decisions in the whole life cycle of this facility from concept to demolition;

(3) At different stages of the facility, different stakeholders insert, extract, update and modify information in BIM to support and reflect the collaborative work of their respective responsibilities.