BIM is an abbreviation and stands for "Building Information Modeling": A digital planning procedure for starting a complete building project, which contains all relevant information and from which up to 7 dimensions (in addition to the spatial dimensions also time, costs, life cycle and facility management) can be derived. So to speak, building data is "modeled" across all trades. The end product of the BIM process is a digital 3D model or digital twin, which integrates architecture, structural analysis and technical building equipment.