Building Information Modeling (BIM) is a topic of discussion in almost every architectural firm. However, the efficient utilization has not yet become clear. The key factors in the adoption are implementation of front loading and an increase in its reusability. This research considers the classes in the object-oriented databases employed in BIM and propose a new system that generates default configuration for simulations automatically during early design phases. The dissemination of the results of this research will improve simulation accuracy and increase reusability of BIM data. We expect our research to contribute to the adoption and efficient utilization of BIM technology.
