Abstract
In this paper we propose the LOD (Level of Development) of the three-dimensional model concerning the sluice gate based on the business process of the sluice gate, and confirm the validity of the proposal by case study of the two sluice gates. We suppose the expected effect by utilizing the three-dimensional model in each business process of the sluice gate, and confirm a part of the expected effect of the utilization by trial in the river sluice gate that is in the construction stage.