Abstract
Several new versions of 3DCAD, developed based on the BIM concept (called BIMCAD), have reached the level of practical use. As the digital model is changed automatically at the same time that one of the drawings is changed using BIMCAD, we can take the latest version of the digital model. Architects create designs using BIMCAD and send the file using the digital model in addition to drawings in an asynchronous architectural design communication between distributed sites, ensuring a smooth and seamless process. However, it is not easy for everybody to use BIMCAD, and the use of the digital model in the asynchronous communication requires a navigation technique in 3D virtual space, instead of a technique for understanding what is represented. To improve the asynchronous accessibility to the digital model, we developed a web application for sharing and browsing the digital model.