Question

two differences between drafting and paper pattern​

Answer 1

Draping uses fabric pinned to a body form to design the garment. The pinned fabric is then removed from the form and the pieces are traced onto pattern paper and "trued", just as you would do with any pattern.

The Flat Pattern Method requires a pattern block or sloper, which is the most basic, unadorned dress or pant pattern. The block pattern is adjusted for perfect fit, and then any garment you design using that block will also fit - the fit is built into the pattern.