How to Import CAD file into the ThingWorx Composer from the factory asset warehouse site?

Hello all,

                 I am trying to find out the possible ways to import the CAD file into the ThingWorx platform.

i referred a paper which i have enclosed along with this post. In the paper under the case study a detailed explanation of linking Aras with ThingWorx is given along with the flowchart. 

It will be helpful if some expert can explain the detailed procedure of the integration process that is mentioned in the attached paper.

thanks in advance.