“…4D models are being used to improve the production, analysis, design management and construction information in many phases and areas of construction projects (Fischer & Kunz, 2004). VTT Building Technology has been developing and implementing applications based on this technique providing better communication between the partners in a construction project (Leinonen et al, 2003). Note the contribution of VR to support conception design (Petzold et al, 2007), to introduce the plan (Khanzode et al, 2007) and to follow the progress of constructions (Fischer, 2000).…”