Steps from DraftSight 2D to G-code to Post Processing to CNC Router?

A few steps are clear to me:

What features or properties should a proper 2D drawing have in order for the G-code Generator to process and feed to Makers NC Post Processing?

  1. Using drawing views, i.e., Top, Front, etc.?  Example, Top (Plan) view of (2) End Plates, 16 units thick?
  2. What other required details?

Is there a link or documents that covers these steps in some depth? I can create the drawing, I need to understand 'what & how' out in front of me?

Thanks, Billy

BTW: I'm not sure if I am getting notifications of forum replies/answers?