抄録
There's likely to problem not to inherit the skills and knowledge about manufacturing and designing. Annotation function in CAD software could embed such informations, however it requires extra operations and the locations depends on the CAD system. So we develop a universal representation method that indicates regions on the 3-D model. This method uses the expression of 3-D locations called as Discrete Direction Expression and extends it. Forthermore we made a user-interface device to indicate 3-D regions on the 3-D model intuitively by the use of mixed reality. Therefore, we suggests a universal representation method for three dimensional partial regions throughout the model lifecycle and suitable interface device.
