Fritz using CAD?

Surely I must be on the right path regarding the use of CAD if a distinguished jeweller like Fritz Maierhofer has also started designing his artworks using CAD. On Maierhofer's website, he states that "The new tool is the computer screen. The goldsmith’s craft is not only defined by the file and hammer." Below is one of the pieces he has manufactured using CAD

 

Sliding Ring

Material : Aluminium