Building Information Modelling, acronym BIM, is a method for the optimization of planning, construction and management of buildings as the “digital representation of physical and functional characteristics of an object”. BIM is therefore neither a product nor a software but a “building information container” in which to insert graphic data (such as drawings) and specific technical attributes (such as data sheets and characteristics) also related to the expected life cycle. The use of BIM allows an effective control of the execution phases of the work – building, structural, plant engineering, managing the timing, solving interferences and bringing numerous advantages to builders and contractors.