BIM for improved building design communication between architects and clients in the schematic design phase

What exactly is Building Information Modeling (BIM) and how does it revolutionize architectural practice? How does it provide improved building design information so as to improve design communication among the stakeholders during a design process? How does it specifically improve architect-client building design communication in the schematic design phase?

BIM has been proved and is being utilized by the Architecture/Engineering/ Construction (AEC) industry to streamline and improve building design information in the design process especially in the construction documents phase. But what contribution does it have in improving architect-client building design communication in the schematic design phase? BIM has been believed to revolutionize and improve architectural practice by providing 3D virtual models and a digital database. Though BIM is quite broad and believed to automate the building lifecycle from design conception to demolition, the specific improvements it would bring to the architect-client relationship in the schematic design phase hasn’t been analyzed and interpreted. After comparing the documents holding building design information produced using the Conventional Method (CM) and BIM, the benefits and improvements BIM brings to architect-client communication could be understood.