BIM stand for building information modeling. It is a process it has been standardised in order to ease exhanges between different tenant according business process step.
Many engineering and design institute are now fully working on enabling BIM modeling. But too often there is a misunderstanding on the BIM meaning . BIM doesn’t mean 3D. It means Building information modeling . It is a process which agregate all along the life cycle different types of informations , documents, 3D , non 3D informations. Those informations are growing accross the business process phase but the most important is that the informations can be reused or consume between 2 different business process steps to optimise quality concistency and speed of project delivery