5D modeling is the process of construction designing which includes not only data on the elements of the building model, the environment (3D), the procedure and time of work implementation (4D), but also any other calculated indicator, for example, cost (5D).

4D is a harmonious combination of the 3D model of the designed building with the work plan (calendar) for its construction.

3D modelling with BIM technology differs significantly from traditional planar, 2D CAD design.