Scanning collects millions of points of 3D data, which must then be interpreted to generate the CAD file. The CAD file is produced in a secondary process, after the scans have been aligned. This is a manual process requiring a skilled technician to generate the 3D models and/or 2D drawings. There are some automated methods to convert scans to CAD; however, the usefulness is typically limited and 99% of the time it is a human that produces the CAD files.