The recent trend of more complex, high-tech, high-rise and free-form buildings worldwide has made BIM(Building Information Modeling) technology being actively accepted in the industry. Along with the growth of interest on the categorization, storage, and application of BIM data, the importance of data quality management is also expected to grow. This study is to suggest effective ways of sharing BIM quality information considering the general approach for criteria, objects, and rules for Open BIM data quality management. For this purpose, we investigated precedent studies on the BIM quality management as well as literatures to draw 3 basic elements of BIM data quality - Data Quality Index, Critical to Quality and Business Rule. These elements were applied to a sample BIM model data whose quality needs to be assured for accurate QTO(quantity takeoff). And this quality assurance could be accomplished by API application developed for SMC program, suggesting a direction for BIM data quality management.
