“…Secondly, a change of media, imposed by the BIM method which employs specific tools such as IFC (Industry Foundation Classes) mock-ups and BIM protocols, is opposed to conventional tools such as sketches, CAD and geometric models used in the design phases (Hoscheid, 2018;Dautremont et al, 2020). Specify that the term "sketch" is used in this paper going beyond the paper sketches and rather to designate an abstract and moving representation of the project, by opposition with a detailed executive plan, regardless of the medium being paper, CAD or parametric tools.…”